Synthesis and Structure of a 2D Woven Network Structure Supramolecule Complex Containing 72-Membered Macrocycles

Abstract

Abstract: Anew flexible aryl heterocyclic tripodal ligand: 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene(titb) was prepared. The titled complex {Cu₃(dien)₃(titb)₂(ClO₄)₆?(CH₃CN)_0.5(H₂O)_0.25}n , where dien=diethylenetriamine, was synthesised by two different methods. The complex crystallizes in triclinic system, space group P2 with a = 1.3630(3) nm , b =1.5837(2) nm, c =2.1105(3) nm, α =70.860(10)°, β =86.700(10)°, γ = 64.900(10)°, V =3.8797(11) nm³, Z =2, D_c=1.577 g/cm³, F (000)=1905, R = 0.0586 , wR₂= 01359 , S =0.948, Δρ_max=1.190×10³e/nm³, Δρ_min=-0.472×10³e/nm³. There are two kinds of conformation of the titb ligand in the structure of the titled complex, one is cis, trans, trans conformation, the other is cis, cis, cis conformation. Each Cu(dien)²⁺unit binds with two titb ligands to form a two dimensional woven network structure containing 72-membered macrocycles.

Key words: Supramolecule, Flexible aromatic tripodal ligand, 72-Membered macrocycles, Two dimensional network woven structure

CLC Number:

O613.12

TrendMD:

LIU Hong-Ke, SUN Wei-Yin, ZHU Hai-Liang, TANG Wen-Xia . Synthesis and Structure of a 2D Woven Network Structure Supramolecule Complex Containing 72-Membered Macrocycles[J]. Chem. J. Chinese Universities, 1999, 20(5): 690.

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Synthesis and Structure of a 2D Woven Network Structure Supramolecule Complex Containing 72-Membered Macrocycles

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