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author:

Chen, JX (Chen, JX.) [1] | Liu, SX (Liu, SX.) [2] | Gao, EQ (Gao, EQ.) [3]

Indexed by:

Scopus SCIE

Abstract:

The hydrothermal reactions of H(3)TMA (or Na(3)TMA) with metal acetate yield three novel coordination polymers [Cd-3(TMA)(2)(H-PRZ)(H2O)(3)(OH)] (.) H2O (1), Cd2Na2(TMA)(2)(H2O)(4) (2) and [Cd2Co(TMA)(2)(H2O)(4)] (.) 2H(2)O (3) (TMA = trimesic acid, PRZ = piperazine). The three Cd(II) centers in 1 are bridged by TMA ligands and a mu(3)-O atom of coordinated hydroxide to generate a sandwich-liked tri-layer motif. These motifs with a Cd3O core are further interlinked by hydrogen bond interactions to stack in a 3D coordination framework with a porous dimension of ca. 7.5 x 5.5 A. Complex 2 is a three-dimensional polymer based on tetranuclear heterometallic clusters. The centrosymmetric tetranuclear heterometallic cluster contains a Cd2Na2 parallelogram cluster core. These clusters are connected through the coordination of carboxylate oxygen atoms of TMA ligands to form a 3D coordination framework. Complex 3 represents the first structural characterization of a trimesate complex containing two different transitional metals. Each TMA(3-) ligand in the Cd2CO(C9H3O6)(2)(H2O)(4) structure unit of 3 binds to other three structure units, resulting in a 3D coordination polymer. The three complexes exhibit strong fluorescent emission bands at 420 nm (lambda(ex) = 314 nm) for complex 1, 424 nm (lambda(ex) = 314 nm) for complex 2, and 419 nm (lambda(ex) = 308 nm) for complex 3 in the solid state at room temperature. The preliminary magnetic property of complex 3 has been investigated. (C) 2004 Elsevier Ltd. All rights reserved.

Keyword:

crystal engineering polymers self-assembly supramolecular chemistry transition metal

Community:

  • [ 1 ] Fuzhou Univ, Cent Lab, Fuzhou 350002, Peoples R China
  • [ 2 ] Fujian Normal Univ, Coll Chem & Mat Sci, Fujian 350002, Peoples R China
  • [ 3 ] E China Normal Univ, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China

Reprint 's Address:

  • 刘世雄

    [Liu, SX]Fuzhou Univ, Cent Lab, Fuzhou 350002, Peoples R China

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Source :

POLYHEDRON

ISSN: 0277-5387

Year: 2004

Issue: 11

Volume: 23

Page: 1877-1888

1 . 5 8 6

JCR@2004

2 . 4 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 42

SCOPUS Cited Count: 45

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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