P RAJAKANNU

@ruraluniv.ac.in

DST-Inspire Faculty and Department of Chemistry
The Gandhigram Rural Institute



              

https://researchid.co/rajakannu

EDUCATION

M.Sc., Ph.D

RESEARCH, TEACHING, or OTHER INTERESTS

Materials Chemistry, Electronic, Optical and Magnetic Materials, Inorganic Chemistry, Organic Chemistry

37

Scopus Publications

764

Scholar Citations

16

Scholar h-index

24

Scholar i10-index

Scopus Publications

  • Deep-red emitting neutral Ir(III) complexes possessing rigid bidentate ligand and various ancillaries
    Keerthana Thangaraj, Vengadeshwaran Palanichamy, Ngoc Tuyet Nhi Nguyen, Kumaresan Sudharsan, Monisha Sekar, Bhaskaran Shankar, Min Hyung Lee, and Palanisamy Rajakannu
    Elsevier BV

  • Intra-molecular hydrogen bonding interactions controlled the formation of cis- and trans-Pt (II) emitters: Tuning the emission wavelength through tuning the functionality
    Madhumathy Parthiban, Keerthana Thangaraj, Kalimuthu Vinothkumar, Sarikalakshmi Baskaran, and Palanisamy Rajakannu
    Elsevier BV

  • Effect of substituents in tuning the inter- and intra-molecular interactions in the dinuclear Pt(II) complexes
    Sarikalakshmi Baskaran, Keerthana Thangaraj, Vengadeshwaran Palanichamy, Bhaskaran Shankar, and Palanisamy Rajakannu
    Elsevier BV


  • Molecular Engineering for Shortening the Pt···Pt Distances in Pt(II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for Application in Deep-Red and Near-IR OLEDs
    Palanisamy Rajakannu, Woochan Lee, Sanghoon Park, Hyung Suk Kim, Hanif Mubarok, Min Hyung Lee, and Seunghyup Yoo
    Wiley
    Deep‐red (DR)‐to‐near‐infrared (NIR) phosphorescent organic light‐emitting diodes (OLEDs) have potentials for application in various fields ranging from phototherapy to sensing. Accordingly, herein, phenylpyridazine‐based bidentate ligands are synthesized and subsequently utilized for the preparation of dinuclear Pt(II) complexes (1–6). The molecular structures of 1–3 is investigated by single‐crystal X‐ray diffraction, and the results suggest that these complexes have substantially shortened Pt···Pt distances (2.906–2.911 Å). Complexes 1–6 exhibit intense emissions in the NIR region (700–726 nm), high photoluminescence quantum yield (PLQY) (0.11–0.18), and short phosphorescence decay lifetimes (τ = 0.64–0.95 µs) in a CH2Cl2 solution. To examine the effect of N‐substitution on the dinuclear Pt complexes, the phenylpyrimidine‐based Pt(II) emitters 7 and 8 are prepared and discovered to have Pt···Pt distances of 2.933 Å. 7 and 8 demonstrate strong emissions in the 628–650 nm range with high PLQY of 0.52–0.65. Theoretical studies indicate that the functional groups or atoms in the ligands play crucial roles in the formation of emitters with significantly shortened Pt···Pt distances. 3 and 7 are employed as non‐doped emitters to fabricate NIR OLEDs, and the resulting OLEDs exhibit electroluminescence peaks at 754 and 692 nm with maximum external quantum efficiencies of 3.0 and 4.4%, respectively.

  • Deep-red to Near-infrared Organic Light-emitting Diodes based on Dinuclear Platinum(II) complex


  • Deep-red to Near-infrared Organic Light-emitting Diodes based on Dinuclear Platinum(II) complex
    Woochan Lee, Palanisamy Rajakannu, Hyung Suk Kim, Sunhyung Koo, Sanghoon Park, and Seunghyup Yoo
    Optica Publishing Group
    An efficient deep-red to near-infrared organic light-emitting diode was well synthesized and fabricated based on dinuclear platinum(II) complex. The device exhibited a maximum wavelength of 754 nm with a maximum external quantum efficiency of 3.0%.

  • Deep-red to Near-infrared Organic Light-emitting Diodes based on Dinuclear Platinum(II) complex
    Woochan Lee, Palanisamy Rajakannu, Hyung Suk Kim, Sunhyung Koo, Sanghoon Park, and Seunghyup Yoo
    Optica Publishing Group
    An efficient deep-red to near-infrared organic light-emitting diode was well synthesized and fabricated based on dinuclear platinum(II) complex. The device exhibited a maximum wavelength of 754 nm with a maximum external quantum efficiency of 3.0%.

  • Deep-red to Near-infrared Organic Light-emitting Diodes based on Dinuclear Platinum(II) complex
    Woochan Lee, Palanisamy Rajakannu, Hyung Suk Kim, Sunhyung Koo, Sanghoon Park, and Seunghyup Yoo
    Optica Publishing Group
    An efficient deep-red to near-infrared organic light-emitting diode was well synthesized and fabricated based on dinuclear platinum(II) complex. The device exhibited a maximum wavelength of 754 nm with a maximum external quantum efficiency of 3.0%.

  • Naphthalene Benzimidazole Based Neutral Ir(III) Emitters for Deep Red Organic Light-Emitting Diodes
    Palanisamy Rajakannu, Hyung Suk Kim, Woochan Lee, Ajay Kumar, Min Hyung Lee, and Seunghyup Yoo
    American Chemical Society (ACS)
    Rigid naphthalene benzimidazole (NBI) based ligands (L1 and L2) are synthesized and utilized to make deep red phosphorescent cyclometalated iridium(III) complexes ([Ir(NBI)2(PyPzCF3)] (1) and [Ir(DPANBI)2(PyPzCF3)] (2)). Complexes 1 and 2 are prepared from the reaction of L1/L2 with the aid of ancillary ligands (PyPzCF3, 2-(3-(trifluoromethyl)-1H-pyrazol-5-yl)pyridine) in a two step method. The complexes are characterized by analytical and spectroscopic methods, as well as X-ray diffraction for 1. These complexes show a strong emission in the range of 635-700 nm that extends up to the near-infrared region (800 nm). The introduction of the diphenylamino (DPA) donor group on the naphthalene unit leads to a further red-shift in the emission. The complexes exhibit radiative quantum efficiency (ΦPL) of 0.27-0.29 in poly(methylmethacrylate) film and relatively short phosphorescence decay lifetimes (τ = 1.1-3.5 μs). The structural, electronic, and optical properties are investigated with the support of density functional theory (DFT) and time-dependent-DFT calculations. The calculation results indicate that the lowest-lying triplet (T1) excited state of 1 has a mixed metal-to-ligand charge transfer (3MLCT) and ligand-centered (3LC) character, while 2 shows a dominant 3LC character. Deep red-emitting organic light-emitting diodes fabricated using 1 as a dopant display a maximum external quantum efficiency of 10.9% with the CIE color coordinates of (0.690, 0.294), with an emission centered at 644 and 700 nm. Similarly, the emitter 2 also shows a maximum external quantum efficiency of 6.9% with emissions at 657 and 722 nm.

  • Facile one-pot synthesis and crystal structure of 2:1 adducts of myrcene (or ocimene) with benzoquinones
    Sujata V. Bhat, Rohan S. Pawar, and P. Rajakannu
    Bentham Science Publishers Ltd.
    One-pot tandem oxidation and double Diels-Alder reaction of myrcene or ocimene with in situ generated 1,4-benzoquinone or 1,2-benzoquinone at 0°C for 1.5 h yielded polyalkylated 1,4,4a,5,8,8a,9a,10a-octahydro-9,10-anthracenediones and bis(alkylated) 9,10-phenanthrenedione respectively. The structure of novel bis-adduct from ocimene, (1R,4aR,5S,8aS,9aS,10aR)-rel- 1,4,4a,5,8,8a,9a,10a-octahydro-2,6-dimethyl-1,5-bis(3-methyl-2-buten-1-yl)-9,10-anthracenedione, was elucidated through single crystal X-ray analysis.


  • Iridium(III) Complexes Bearing Tridentate Chromophoric Chelate: Phosphorescence Fine-Tuned by Phosphine and Hydride Ancillary
    Jia-Ling Liao, Palanisamy Rajakannu, Shih-Hung Liu, Gene-Hsiang Lee, Pi-Tai Chou, Alex K.-Y. Jen, and Yun Chi
    American Chemical Society (ACS)
    Functional 2-pyrazolyl-6-phenylpyridine chelates-namely, (pzpyphBu)H2 and (pzpyphCF3)H2 and phosphines-are successfully employed in the preparation of emissive Ir(III) metal complexes, for which the reaction with phosphine such as PPh3, PPh2Me, and PPh2(CH2Ph) afford corresponding Ir(III) complexes [Ir(pzpyphBu)(PPh3)2H] (1a), [Ir(pzpyphCF3)(PPh2R)2H] (2a-2c), R = Ph, Me, CH2Ph, which also show an equatorial coordinated hydride. In contrast, treatment with 1,2-bis(diphenylphosphino)benzene (dppb) and 1,2-bis(diphenylphosphino)ethane (dppe) yields the isomeric products [Ir(pzpyphBu)(dppb)H] (3a) and [Ir(pzpyphBu)(dppe)H] (3b), for which the distinctive, axial hydride undergoes rapid chlorination, forming chlorinated complexes [Ir(pzpyphBu)(dppb)Cl] (4a) and [Ir(pzpyphBu)(dppe)Cl] (4b), respectively. On the other hand, upon extensive heating of 2c, one of its coordinated PPh2(CH2Ph) exhibits benzyl cyclometalation and hydride elimination to afford [Ir(pzpyphCF3)(PPh2R)(PPh2R')] (5c and 6c) R = CH2Ph and R' = CH2( o-C6H4) as the kinetic and thermodynamic products, respectively. Their structural, photophysical, and electrochemical properties are examined and further affirmed by the computational approaches.


  • Luminescent Diiridium Complexes with Bridging Pyrazolates: Characterization and Fabrication of OLEDs Using Vacuum Thermal Deposition
    Jia-Ling Liao, Palanisamy Rajakannu, Premkumar Gnanasekaran, Shang-Ru Tsai, Chun-Han Lin, Shih-Hung Liu, Chih-Hao Chang, Gene-Hsiang Lee, Pi-Tai Chou, Zhong-Ning Chen,et al.
    Wiley
    A series of novel diiridium complexes (1–4) bearing both functional 2‐pyrazolyl‐6‐phenyl pyridine chelate and bidentate phenyl imidazolylidene chelate are synthesized, for which the pyrazolate fragment of the tridentate 2‐pyrazolyl‐6‐phenyl pyridine also behaves as the bridge to hold two iridium atoms in close vicinity. Their structure is unambiguously confirmed using X‐ray structure determination on the corresponding derivative 2a bearing 1,3‐bis(4‐fluorophenyl)‐1H‐Imidazolyl cyclometalate. Their photophysical and electrochemical properties are studied and further affirmed by the computational approaches. All these Ir(III) metal complexes 1–4 are very stable in both solution and solid film with near unity emission quantum efficiency. As opposed to most of diiridium complexes documented in literature, 1–4 are volatile and suitable for fabrication of organic light emitting diodes (OLEDs) under vacuum evaporation. The corresponding electroluminescent devices exhibit superior performance, among which external quantum efficiency of 27.6% using 2 as dopant stands for the record high of OLEDs using dinuclear Ir(III) complexes. They also offer a low roll‐off at high luminance, demonstrating their potential en route to high performance OLEDs.

  • Emissive bis-tridentate Ir(III) metal complexes: Tactics, photophysics and applications
    Yun Chi, Ting-Kuang Chang, Paramaguru Ganesan, and Palanisamy Rajakannu
    Elsevier BV

  • Steric group enforced aromatic cyclic trimer conformer in tripodal molecules
    Shankar Deval Sathiyashivan, Bhaskaran Shankar, Palanisamy Rajakannu, Pratap Vishnoi, Dhanraj T. Masram, and Malaichamy Sathiyendiran
    Royal Society of Chemistry (RSC)
    A family of tripodal molecules (1–6) with/without steric ethyl groups at the central benzene scaffold and with furan/thiophene/pyridyl groups at the 2-position of the benzimidazolyl unit was synthesised.

  • Stereochemical modulation of emission behaviour in E/Z isomers of diphenyldipyrroethene from aggregation induced emission to crystallization induced emission
    K. Garg, E. Ganapathi, P. Rajakannu, and M. Ravikanth
    Royal Society of Chemistry (RSC)
    We have successfully separated and characterized E- and Z-isomers of diphenyldipyrroethene molecules and studies show that the E-isomer behaves as AIEgen, whereas the Z-isomer behaves as CIEgen.

  • Efficient catalyst for tandem solvent free enantioselective Knoevenagel-formal [3+3] cycloaddition and Knoevenagel-hetero-Diels-Alder reactions
    Sylvia Fernandes, P. Rajakannu, and Sujata V. Bhat
    Royal Society of Chemistry (RSC)
    Tandem Knoevenagel-cycloaddition reactions forming bicyclic tetrahydro-2H-chromen-5(6H)-ones and tricyclic octahydro-2H-benzo[c]-chromen-1(6H)-ones are achieved with up to 98.8% ee in the presence of chiral LBA and titanium-isopropoxy-(S)-BINOLate.

  • Meso-Salicylaldehyde substituted BODIPY as a chemodosimetric sensor for cyanide anions
    Avanish Dvivedi, Palanisamy Rajakannu, and Mangalampalli Ravikanth
    Royal Society of Chemistry (RSC)
    meso-Salicylaldehyde substituted BODIPY 3 was synthesized by a simple method and used as a chemodosimetric sensor for CN− anions.

  • Asymmetric base-free michael addition at room temperature with nickel-based bifunctional amido-functionalized N-heterocyclic carbene catalysts
    Mitta Nageswar Rao, Meera Haridas, Manoj Kumar Gangwar, Palanisamy Rajakannu, Alok Ch. Kalita, and Prasenjit Ghosh
    Wiley
    A series of nickel-based chiral bifunctional catalysts (1d–3d) with N-heterocyclic carbene (NHC) ligands derived from (1R)-(–)-menthol, (1S)-(–)pinene, and (1R)-(+)-camphor have been successfully designed for asymmetric Michael addition reactions under base-free conditions. The NHC complexes, namely, [1-R-3-{N-(phenylacetamido)}imidazol-2-ylidene]2Ni [R = (1S)-menthyl (1d), (1S)-pinane (2d), and (1R)-isobornyl (3d)], bearing chiral ancillaries on the amido-functionalized side arms of the NHC ligands, performed the bifunctional catalysis of the asymmetric base-free Michael addition reaction of the α-methyl cyano ester substrates ethyl 2-cyanopropanoate (4), isopropyl 2-cyanopropanoate (5), and tert-butyl 2-cyanopropanoate (6) with the activated olefinic substrates methyl vinyl ketone (7) and acrylonitrile (8) in 63–98 % yields with enantiomeric excess (ee) values of 2–75 % at room temperature in 8 h. More interestingly, only the longest of the three catalysts, the menthol derivative 1d, showed significant chiral induction of up to 75 % ee; this has been attributed to the reduction of the steric influence owing to the relatively distant dispositions of the chiral ancillaries from the catalytically active metal center that arise as a consequence of the cis geometries of 1d–3d.

  • Role of 4,4'-bipyridine versus longer spacers 4,4'-azobipyridine, 1,2-bis(4-pyridyl)ethylene, and 1,2-bis(pyridin-3-ylmethylene)hydrazine in the formation of thermally labile metallophosphate coordination polymers
    Palanisamy Rajakannu, Rana Howlader, Alok Ch. Kalita, Raymond J. Butcher, and Ramaswamy Murugavel
    Royal Society of Chemistry (RSC)
    Uncoordinated N-donors spacers in the title compounds facilitate interesting orthogonal H-bonding, leading to the formation of 3-D polymeric networks.

  • Thiophene/furan units decorated unsymmetrical dinuclear metallocalix[4]arenes
    Palanisamy Rajakannu, Shaikh M. Mobin, and Malaichamy Sathiyendiran
    Elsevier BV

  • Auxiliary ligand-aided tuning of aggregation of transition metal benzoates: Isolation of four different types of coordination polymers
    Subarna Banerjee, Palanisamy Rajakannu, Raymond J. Butcher, and Ramaswamy Murugavel
    Royal Society of Chemistry (RSC)
    The position of benzoic acid substituents and the ability of the auxiliary ligand to act as a chelating or a bridging ligand drive metal benzoates to assemble either as discrete or as polymeric complexes.

  • Synthesis and crystal structure of a wheel-shaped supramolecular coordination complex
    DEEPAK GUPTA, PALANISAMY RAJAKANNU, BHASKARAN SHANKAR, FIRASAT HUSSAIN, and MALAICHAMY SATHIYENDIRAN
    Springer Science and Business Media LLC

RECENT SCHOLAR PUBLICATIONS

  • Intra-molecular hydrogen bonding interactions controlled the formation of cis-and trans-Pt (II) emitters: Tuning the emission wavelength through tuning the functionality
    M Parthiban, K Thangaraj, K Vinothkumar, S Baskaran, P Rajakannu
    Journal of Molecular Structure 1326, 141097 2025

  • Deep-red emitting neutral Ir (III) complexes possessing rigid bidentate ligand and various ancillaries
    K Thangaraj, V Palanichamy, NTN Nguyen, K Sudharsan, M Sekar, ...
    Journal of Molecular Structure, 141558 2025

  • Unlocking the full potential of OLEDs for biomedical applications
    S Yoo, P Rajakannu, W Lee, JH Sim, H Chae
    Organic and Hybrid Light Emitting Materials and Devices XXVIII 13122, 131220O 2024

  • Effect of substituents in tuning the inter-and intra-molecular interactions in the dinuclear Pt (II) complexes
    S Baskaran, K Thangaraj, V Palanichamy, B Shankar, P Rajakannu
    Journal of Molecular Structure 1296, 136900 2024

  • Deep-red emitting neutral Ir (III) complexes possessing rigid bidentate ligand
    V Soundharya, M Ritheesh, G Thirukumaran, T Keerthana, P Rajakannu
    Symposium on “Emerging Chemistry Trends: Innovations and Sustainable Solutions” 2023

  • Synthesis, characterization and photo-physical studies of naphthalamide-based Ir (III) complexes
    P Rajakannu, B Shankar
    Journal of Organometallic Chemistry 1002, 122908 2023

  • Deep-red to Near-infrared Organic Light-emitting Diodes based on Dinuclear Platinum (II) complex
    W Lee, P Rajakannu, HS Kim, S Koo, S Park, S Yoo
    Solar Energy and Light-Emitting Devices, JW4D. 3 2023

  • Organometallic complex, light emitting diode, and electronic device
    S Yoo, P Rajakannu, HS Kim, LEE Woochan
    US Patent App. 17/750,702 2023

  • ORGANOMETALLIC COMPLEX AND LIGHT EMITTING ELEMENT AND ELECTRONIC DEVICE
    S Yoo, P Rajakannu, HS Kim, W Lee
    KR Patent 20,230,059,537 A 2023

  • Molecular Engineering for Shortening the Pt Pt Distances in Pt (II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for Application in Deep‐Red and
    P Rajakannu, W Lee, S Park, HS Kim, H Mubarok, MH Lee, S Yoo
    Advanced Functional Materials 33 (16) 2023

  • Molecular Engineering for Shortening the Pt Pt Distances in Pt (II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for Application in Deep‐Red and
    P Rajakannu, W Lee, S Park, HS Kim, H Mubarok, MH Lee, S Yoo
    Advanced Functional Materials 33 (16), 2211853 2023

  • Molecular Engineering for Shortening the Pt center dot center dot center dot Pt Distances in Pt (II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for
    P Rajakannu, W Lee, S Park, HS Kim, H Mubarok, MH Lee, S Yoo
    ADVANCED FUNCTIONAL MATERIALS 33 (16) 2023

  • Near-infrared Organic Light-Emitting Diodes Based on Highly Horizontally Oriented Platinum Complex
    W Lee, HS Kim, P Rajakannu, S Yoo
    The 13th International Conference on Electroluminescence and Optoelectronic 2022

  • Near-Infrared Phosphorescent Organic Light-Emitting Diodes using Perfect Square Planar type cis-Pt (II) Complex
    W Lee, P Rajakannu, HS Kim, S Yoo
    IMID 2021 (21th International Meeting on Information Display) 2021

  • Naphthalene benzimidazole based neutral Ir (III) emitters for deep red organic light-emitting diodes
    P Rajakannu, HS Kim, W Lee, A Kumar, MH Lee, S Yoo
    Inorganic Chemistry 59 (17), 12461-12470 2020

  • Facile One-Pot Synthesis and Crystal Structure of 2: 1 Adducts of Myrcene (or Ocimene) with Benzoquinones
    SV Bhat, RS Pawar, P Rajakannu
    Letters in Organic Chemistry 17 (8), 624-627 2020

  • Platinum complex, OLED and apparatus for providing visible emission or near-infrared emission
    Y Chi, R Palanisamy, M Nandakumar
    US Patent 10,640,525 2020

  • Neutral tris/bis-bidentate Ir (III) and Pt (II) phosphors for efficient near-IR OLEDs
    P Rajakannu, A Kumar, HS Kim, W Lee, MH Lee, S Yoo
    IMID 2019 (19th International Meeting on Information Display) 2019

  • Effect of benzoic acid substituents and additional functional groups of ancillary ligands in modulating the nuclearity and aggregation behavior of transition metal carboxylates
    P Rajakannu, D Kaleeswaran, S Banerjee, RJ Butcher, R Murugavel
    Inorganica Chimica Acta 486, 283-293 2019

  • Design of neutral Ir(III) and Pt(II) emitters for efficient near-IR OLEDs
    P Rajakannu, A Kumar, MH Lee, S Yoo
    International Conference on Electroluminescence and Optoelectronic Devices 2018

MOST CITED SCHOLAR PUBLICATIONS

  • Emissive bis-tridentate Ir (III) metal complexes: Tactics, photophysics and applications
    Y Chi, TK Chang, P Ganesan, P Rajakannu
    Coordination Chemistry Reviews 346, 91-100 2017
    Citations: 158

  • Stereochemical modulation of emission behaviour in E/Z isomers of diphenyldipyrroethene from aggregation induced emission to crystallization induced emission
    K Garg, E Ganapathi, P Rajakannu, M Ravikanth
    Physical Chemistry Chemical Physics 17 (29), 19465-19473 2015
    Citations: 48

  • Furan-decorated neutral Re (I)-based 2D rectangle and 3D trigonal prism
    D Gupta, P Rajakannu, B Shankar, R Shanmugam, F Hussain, B Sarkar, ...
    Dalton Transactions 40 (20), 5433-5435 2011
    Citations: 46

  • Luminescent diiridium complexes with bridging pyrazolates: Characterization and fabrication of OLEDs using vacuum thermal deposition
    JL Liao, P Rajakannu, P Gnanasekaran, SR Tsai, CH Lin, SH Liu, ...
    Advanced Optical Materials 6 (11), 1800083 2018
    Citations: 45

  • meso-Salicylaldehyde substituted BODIPY as a chemodosimetric sensor for cyanide anions
    A Dvivedi, P Rajakannu, M Ravikanth
    Dalton Transactions 44 (9), 4054-4062 2015
    Citations: 44

  • Rhenium (I) based metallocalix [4] arenes decorated with free functionalized benzimidazolyl units
    P Rajakannu, P Elumalai, B Shankar, F Hussain, M Sathiyendiran
    Dalton Transactions 42 (32), 11359-11362 2013
    Citations: 36

  • Adaptation toward restricted conformational dynamics: From the series of neutral molecular rotors
    P Rajakannu, B Shankar, A Yadav, R Shanmugam, D Gupta, F Hussain, ...
    Organometallics 30 (11), 3168-3176 2011
    Citations: 36

  • Asymmetric Base‐Free Michael Addition at Room Temperature with Nickel‐Based Bifunctional Amido‐Functionalized N‐Heterocyclic Carbene Catalysts
    MN Rao, M Haridas, MK Gangwar, P Rajakannu, AC Kalita, P Ghosh
    European Journal of Inorganic Chemistry 2015 (9), 1604-1615 2015
    Citations: 32

  • Rhenium-based bicyclic supramolecule with calixarene-shaped bowls
    P Rajakannu, P Elumalai, F Hussain, M Sathiyendiran
    Journal of Organometallic Chemistry 725, 1-4 2013
    Citations: 30

  • Iridium (III) Complexes Bearing Tridentate Chromophoric Chelate: Phosphorescence Fine-Tuned by Phosphine and Hydride Ancillary
    JL Liao, P Rajakannu, SH Liu, GH Lee, PT Chou, AKY Jen, Y Chi
    Inorganic chemistry 57 (14), 8287-8298 2018
    Citations: 29

  • Non-covalently aggregated zinc and cadmium complexes derived from substituted aromatic carboxylic acids: Synthesis, spectroscopy, and structural studies
    N Palanisami, P Rajakannu, R Murugavel
    Inorganica Chimica Acta 405, 522-531 2013
    Citations: 29

  • Unprecedented single-crystal-to-single-crystal topochemical conformational change and photoreduction of ethylene units in π-stacked metallomacrocycle
    P Rajakannu, F Hussain, B Shankar, M Sathiyendiran
    Inorganic Chemistry Communications 26, 46-50 2012
    Citations: 26

  • Naphthalene benzimidazole based neutral Ir (III) emitters for deep red organic light-emitting diodes
    P Rajakannu, HS Kim, W Lee, A Kumar, MH Lee, S Yoo
    Inorganic Chemistry 59 (17), 12461-12470 2020
    Citations: 23

  • Hard and soft-donors decorated rhenium based metallocavitands
    P Rajakannu, P Elumalai, SM Mobin, KL Lu, M Sathiyendiran
    Journal of Organometallic Chemistry 743, 17-23 2013
    Citations: 21

  • Self-assembled tetranuclear metallacyclic chair using orthogonal tritopic acceptors, angular ditopic donors, and bischelating bridging motifs
    B Shankar, P Rajakannu, S Kumar, D Gupta, T Kannan, M Sathiyendiran
    Inorganic Chemistry Communications 14 (2), 374-376 2011
    Citations: 21

  • Molecular Engineering for Shortening the Pt Pt Distances in Pt (II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for Application in Deep‐Red and
    P Rajakannu, W Lee, S Park, HS Kim, H Mubarok, MH Lee, S Yoo
    Advanced Functional Materials 33 (16), 2211853 2023
    Citations: 16

  • Design strategy for arranging an aromatic cyclic trimer into a tripodal molecule
    P Elumalai, P Rajakannu, F Hussain, M Sathiyendiran
    RSC Advances 3 (7), 2171-2173 2013
    Citations: 14

  • Thiophene/furan units decorated unsymmetrical dinuclear metallocalix [4] arenes
    P Rajakannu, SM Mobin, M Sathiyendiran
    Journal of Organometallic Chemistry 771, 68-77 2014
    Citations: 13

  • Auxiliary ligand-aided tuning of aggregation of transition metal benzoates: isolation of four different types of coordination polymers
    S Banerjee, P Rajakannu, RJ Butcher, R Murugavel
    CrystEngComm 16 (36), 8429-8441 2014
    Citations: 13

  • Synthesis and crystal structure of a wheel-shaped supramolecular coordination complex
    D Gupta, P Rajakannu, B Shankar, F Hussain, M Sathiyendiran
    Journal of Chemical Sciences 126, 1501-1506 2014
    Citations: 12