Synthesis, crystal structures and luminescent properties of zinc(II) and cadmium(II) complexes with N,N-bis(pyridin-3-yl)-2,6-pyridinedicarboxamide

Zhang, Fuli; Zhu, Yinian; Zheng, Juan; Du, Chenxia; Wu, Yangjie

doi:10.1016/j.molstruc.2009.03.022

Cited by 16 publications

(1 citation statement)

References 31 publications

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“…5b, ligand and 1 in ethanol solutions exhibit two maximum absorption peaks around 203, 244, and 203, 246 nm, respectively. Since their absorption bands and band shape are very similar, so it can be concluded that the absorption spectrum of 1 is caused by the p-p* transition of the conjugated system of the ligand [32,44], which coincides with the above analysis on the photoluminescent mechanism of 1. Moreover, in the emission spectra, the emission intensity of 1 is stronger than that of ligand, which may be enhanced by the coordination of Cd(II), i.e., the coordination of ligand to Cd(II) increases the rigidity of ligand and thus reduces the loss of energy by thermal vibrational decay [4,6,8,10,42].…”

Section: Photoluminescence Propertiessupporting

confidence: 80%

Synthesis, crystal structure, and properties of a three-dimensional coordination polymer [Cd(PMP)2] n

Shuan

et al. 2010

Struct Chem

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A new Cd(II) coordination polymer, [Cd(PMP) 2 ] n (1) [PMP = 1-phenyl-3-methyl-5-pyrazolone], has been synthesized by the reaction of Cd(CH 3 COO) 2 Á2H 2 O with PMP and characterized by elemental analysis, IR spectrum, fluorescence spectrum, UV-vis spectrum, TG-DTA, and electrochemical analysis. Single crystal X-ray diffraction reveals that the complex has a three-dimensional network. Each PMP acts as bidentate bridging ligand and each Cd(II) center is surrounded by two O atoms and two N atoms from four different PMP ligands to form distorted tetrahedral coordination geometry. The photoluminescence study shows the complex exhibited strong solid state blue fluorescent emission at room temperature, and the TG-DTA analysis demonstrated that it has highly thermal stability. Furthermore, the electrochemical property of the complex has been investigated for the first time in DMF by cyclic voltammetry, and the results showed that it has an irreversible process.

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Section: Photoluminescence Propertiessupporting

confidence: 80%

Synthesis, crystal structure, and properties of a three-dimensional coordination polymer [Cd(PMP)2] n

Shuan

et al. 2010

Struct Chem

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Synthesis and Supramolecular Architectures of Dinuclear Metallacyclic Silver(I) and Zigzag‐Chain Copper(II) Complexes Bearing 2,6‐Pyridinediylbis(3‐pyridinyl)methanone

Wan¹,

Al‐Thabaiti²,

Chen³

et al. 2013

Eur J Inorg Chem

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The reaction of 2,6‐pyridinediylbis(3‐pyridinyl)methanone (abbreviated as L) with various silver(I) salts yielded a series of complexes, namely, [Ag2(L)2](ClO4)2 (1), {[Ag2(L)2](ClO4)2}∞ (2), {[Ag2(L)2](NO3)2}∞ (3), {[Ag2(L)2](C2F5CO2)2}∞ (4), {[Ag2(L)2](C3F7CO2)2}∞ (5), and {[Ag2(L)2](O2CC3F6CO2)·2H2O}∞ (6), which exhibit a common dinuclear metallacyclic [Ag2(L)2]2+ skeleton that involves linear‐dicoordinate AgI and μ2‐N,N‐bridging L. Complex 2 is a polymorph of 1 obtained by the solvent‐medium tuning effect, and it has an {[Ag2(L)2]2+}∞ infinite‐chain structure. In complexes 3–6, the argentophilic interaction plays an important role in connecting the [Ag2(L)2]2+ units to form a similar {[Ag2(L)2]2+}∞ chain structure to that in 2, although the counteranions are markedly different. The copper(II) complex {[Cu2(CH3CO2)4(L)]·2H2O}∞ (7) exhibits a zigzag‐chain structure composed of an alternating arrangement of L and the Cu2(CH3CO2)4 paddlewheel cluster. In the supramolecular architectures of 1–7, the counteranions engage in multiple noncovalent interactions, and the presence of unusual types such as O/F(anion)···π, O/F(anion)···C=O, and C=O···π are noted and discussed.

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Effect of Organic Dicarboxylates with Different Rigidity on the Construction of Cobalt(II) Complexes with a Semi‐rigid Tripyridyl‐bis‐amide Ligand

Wang¹,

Chen²,

Liu³

et al. 2013

Zeitschrift anorg allge chemie

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Three coordination compounds with dimensions from 0D to 2D, namely, [Co(bppdca)2(HL1)2] (1) [Co(bppdca)(L2)(H2O)]·2H2O (2) and [Co(bppdca)(L3)]·3H2O (3) [bppdca = N,N′‐bis(pyridine‐3‐yl)pyridine‐2,6‐dicarboxamide, H2L1 = 2,5‐pyridinedicarboxylic acid, H2L2 = 4,4′‐oxybisbenzoic acid, H2L3 = 2‐carboxymethylsulfanyl nicotinic acid] were hydrothermally synthesized and structurally characterized. Single crystal X‐ray diffraction analysis reveals that complex 1 is a discrete 0D complex, in which the bppdca ligand and the H2L1 act as the terminal groups to coordinate with the CoII ions. In coordination polymer 2, two bppdca ligands coordinate in anti configuration with two CoII ions to generate a 28‐membered Co2(bppdca)2 loop, which is further extended into 1D ladder‐like double chain by pairs of L2 ligands. In 3, the CoII ions are linked by bppdca ligands to generate 1D wave‐like chain, which is further connected by the L3 to form a 2D network. Finally, the coordination compounds 1–3 are extended into 3D supramolecular frameworks through the hydrogen bonding interactions. The CoII ions and the bppdca ligands in the title coordination compounds exhibit different coordination characters and conformations. The effect of organic dicarboxylates with different rigidity and length on the structures of CoII coordination compounds was investigated. In addition, the fluorescence and electrochemical behaviors of coordination compounds 1–3 were reported.

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Synthesis, crystal structures and luminescent properties of zinc(II) and cadmium(II) complexes with N,N-bis(pyridin-3-yl)-2,6-pyridinedicarboxamide

Cited by 16 publications

References 31 publications

Synthesis, crystal structure, and properties of a three-dimensional coordination polymer [Cd(PMP)2] n

Synthesis, crystal structure, and properties of a three-dimensional coordination polymer [Cd(PMP)2] n

Synthesis and Supramolecular Architectures of Dinuclear Metallacyclic Silver(I) and Zigzag‐Chain Copper(II) Complexes Bearing 2,6‐Pyridinediylbis(3‐pyridinyl)methanone

Effect of Organic Dicarboxylates with Different Rigidity on the Construction of Cobalt(II) Complexes with a Semi‐rigid Tripyridyl‐bis‐amide Ligand

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