Citation: XIANG Jing, LUO Ya. A Novel Layer Cadmium Coordination Polymer Containing Tetranuclear [Cd₄(tpt)₂(Cl)₄]⁴⁺ as a Secondary Building Unit (SBU) Bridged by Pyridine 2,4-Dicarboxylic Acid[J]. Chinese Journal of Structural Chemistry, ;2014, 33(3): 345-352. shu

A Novel Layer Cadmium Coordination Polymer Containing Tetranuclear [Cd₄(tpt)₂(Cl)₄]⁴⁺ as a Secondary Building Unit (SBU) Bridged by Pyridine 2,4-Dicarboxylic Acid

XIANG Jing ,
LUO Ya

1.
College of Chemistry and Environmental Engineering, Yangtze University, HuBei, Jingzhou 434020, China

Received Date: 22 July 2013
Available Online: 22 October 2016
Fund Project: The project was supported by the financial support of National Natural Science Foundation of China (21201023) (21201023)the scientific research fund of HuBei Provincial Education Department (D20131202) (D20131202)

A novel 2-D {[Cd₄(tpt)₂(Cl)₄(2,4-pdc)₂]·4H₂O}_n (1) has been synthesized from the hydrothermal reaction of 3,5,6-tris(2-pyridyl)-1,3,5-triazine (tpt), hydrated CdCl₂, and 2,4-dicarboxylic acid (2,4-H₂pdc). Compound 1 crystallizes in triclinic, P1 space group with α=8.9434(5), b=9.5486(7), c=17.5772 (8) Å, a=75.014 (5), β=83.778(5), γ=68.304(6)°, V=1347.14(14) Å³, C₅₀H₃₈Cd₄Cl₄N₁₄O₁₂, M_r=1618.32, D_c=1.990 g/cm³, S=0.95, μ(MoKα)=1.83 mm^-1, F(000)=788, Z=1, R=0.039 and wR=0.080. The structure consists of tetranuclear [Cd₄(tpt)₂(Cl)₄]⁴⁺ cores as the secondary building unit, which is further connected by the ligand pdc^2- to give a 2-D extended structure. Tpt entities are located on both sides of each 2-D framework and act as ‘side arms' to form a corrugated layer and the adjacent layers are arranged in a tongue-and-groove interdigitating fashion. 1 was characterized by IR, TGA, PX1RD, and elemental analysis. The solid state luminescent properties were also investigated at room temperature.
- cadmium,
- cluster,
- luminescence,
- crystal structure,
- solvothermal synthesis
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