Synthesis and structural studies of some fluorescent group XII metal complexes with a terpyridine based ligand

Kharat, Ali Nemati; Bakhoda, Abolghasem; Zamanian, Sara

doi:10.1016/j.poly.2011.01.024

Cited by 21 publications

(2 citation statements)

References 43 publications

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“…The ligands, 4′-(4chlorophenyl)-2,2′:6′,2″-terpyridine (L 1 ), 4′-(4-bromophenyl)-2,2′:6′,2″-terpyridine (L 2 ), and 4′-(benzothiophen-2-yl)-2,2′:6′,2″terpyridine (L 3 ), were synthesized according to procedures described previously in the literature. [15][16][17] Infrared spectra were recorded on a Nicolet iS5 FT-IR spectrophotometer in the range 4000-400 cm −1 using KBr pellets. Electronic absorption spectra were measured on a Nicolet iS50 UV-VIS-NIR spectrophotometer in the range of 900-180 nm in acetonitrile solution.…”

Section: Methodsmentioning

confidence: 99%

Solid-state and solution photoluminescence of platinum(ii) complexes with 4′-substituted terpyridine ligands – structural, spectroscopic and electrochemical studies

et al. 2016

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PlatinumĲII) complexes with the formula [PtClĲL)]CF 3 O 3 S (where L = 4′-(4-chlorophenyl)-2,2′:6′,2″terpyridine (L 1 ), 4′-(4-bromophenyl)-2,2′:6′,2″-terpyridine (L 2 ), and 4′-(benzothiophene-2-yl)-2,2′:6′,2″terpyridine (L 3 )) were synthesized from precursor [Pt(PhCN) 2 Cl 2 ] and characterized by FT-IR, NMR, UV-vis spectroscopy, X-ray crystallography and electrochemical studies. The emission properties of the coordination compounds were studied in solution and in the solid state at ambient temperature and in methanol : ethanol frozen glass matrices at 77 K. The quantum yields of fluorescence, lifetimes and the nature of the excited states were described on the basis of the molecular properties of the compounds. To elucidate the structural, spectroscopic and bonding properties of the obtained compounds, calculations at the DFT level were undertaken. Coordination compounds are emissive in both solution and solid states. Emission energies and the character of excited states in solution are governed by the donor-acceptor properties of the 4′ substituent of the terpyridine core. The emission properties in the solid state are attributed to the aggregation induced phenomenon. Moreover, the compounds [PtCl(L 1 )]CF 3 O 3 S and [PtCl(L 2 )]CF 3 O 3 S display a bathochromic shifted emission corresponding to J-aggregation (head-to-head Pt⋯Pt interactions), while in the case of compound [PtCl(L 3 )]CF 3 O 3 S a hypsochromic shifted emission compared to that in solution is characteristic of the H-aggregation process (head-to-tail Pt⋯π interaction). The coordination compounds display a strong rigidochromic effect with decay times changing from the ps/ns scale at ambient conditions to the μs domain in frozen glass matrices. 3MLCT/ 3 ILCT/ 3 LC in character. However, relatively less known are the coordination platinumĲII) compounds with 5528

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Section: Methodsmentioning

confidence: 99%

Solid-state and solution photoluminescence of platinum(ii) complexes with 4′-substituted terpyridine ligands – structural, spectroscopic and electrochemical studies

et al. 2016

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“…These bonds are longer as compared to the ve-coordinated mercury thiocyanate complexes with N-donor Schiff base ligands (2.289(3) Å in C 24 H 26 Hg 2 N 10 S 4 and 2.367(5) in C 20 H 23 HgN 5 S 2 ) 52,54. The Hg-S1 and Hg-S2 bond distances are 2.630(5) and 2.480(5) Å, respectively, and comparable to similar structures 55,56. The bond angles of S-donor thiocyanates[S1-C1S-N1S ¼ 174.4(19) and S2-C2S-N2S ¼ 179(2) ] indicates that two thiocyanate groups are quasi-linear and coordinated to the metal center in a bending way [Hg1-S1-C1S ¼ 99.4(7) and Hg1-S2-C2S ¼ 94.7(7)].…”

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confidence: 50%

Structural and computational study of some new nano-structured Hg(ii) compounds: a combined X-ray, Hirshfeld surface and NBO analyses

et al. 2016

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Platinum(II) coordination compounds with 4′-pyridyl functionalized 2,2′:6′,2″-terpyridines as an alternative to enhanced chemotherapy efficacy and reduced side-effects

Altmann

Choroba

Skonieczna

et al. 2019

Journal of Inorganic Biochemistry

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Synthesis and structural studies of some fluorescent group XII metal complexes with a terpyridine based ligand

Cited by 21 publications

References 43 publications

Solid-state and solution photoluminescence of platinum(ii) complexes with 4′-substituted terpyridine ligands – structural, spectroscopic and electrochemical studies

Solid-state and solution photoluminescence of platinum(ii) complexes with 4′-substituted terpyridine ligands – structural, spectroscopic and electrochemical studies

Structural and computational study of some new nano-structured Hg(ii) compounds: a combined X-ray, Hirshfeld surface and NBO analyses

Platinum(II) coordination compounds with 4′-pyridyl functionalized 2,2′:6′,2″-terpyridines as an alternative to enhanced chemotherapy efficacy and reduced side-effects

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