Novel Alternating Ferro-Ferromagnetic Two-Dimensional (4,4) and Photoluminescent Three-Dimensional Interpenetrating PtS-Type Coordination Networks Constructed from a New Flexible Tripodal Ligand as a Four-Connected Node

DOI to cite this document:

10.5283/epub.15146 Copy

Wang, Suna ; Bai, Junfeng ; Xing, Hang ; Li, Yizhi ; Song, You ; Yi, Pan ; Scheer, Manfred ; You, Xiaozeng

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Date of publication of this fulltext: 07 Jun 2010 12:45

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Details

Item type:	Article
Journal or Publication Title:	Crystal Growth & Design
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
Volume:	7
Number of Issue or Book Chapter:	4
Page Range:	pp. 747-754
Date:	6 March 2007
Institutions:	Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer
Identification Number:	Value Type 10.1021/cg0607708 DOI
Keywords:	METAL-ORGANIC FRAMEWORKS; PI-PI STACKING; MAGNETIC-PROPERTIES; CRYSTAL-STRUCTURES; ADSORPTION PROPERTIES; HYDROTHERMAL SYNTHESIS; (3,4)-CONNECTED NET; PHYSICAL-PROPERTIES; HYDROGEN STORAGE; RATIONAL DESIGN;
Dewey Decimal Classification:	500 Science > 540 Chemistry & allied sciences
Status:	Published
Refereed:	Unknown
Created at the University of Regensburg:	Unknown
Item ID:	15146

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Abstract

Two novel two-dimensional (2D) and one three-dimensional (3D) coordination polymers[Ni(HTTG)(H2O)(2)](n) (1), [Co(HTTG)(H2O)(2)](n) (2), and [Cd(HTTG)](n) (3) have been hydrothermally synthesized by self-assembly of an unexplored tripodal ligand H(3)TTG (N,N',N' '-1,3,5-triazine-2,4,6-triyltris-glycine) and corresponding metal salts. X-ray diffraction analysis reveals that the three polymers ...

Abstract

Two novel two-dimensional (2D) and one three-dimensional (3D) coordination polymers[Ni(HTTG)(H2O)(2)](n) (1), [Co(HTTG)(H2O)(2)](n) (2), and [Cd(HTTG)](n) (3) have been hydrothermally synthesized by self-assembly of an unexplored tripodal ligand H(3)TTG (N,N',N' '-1,3,5-triazine-2,4,6-triyltris-glycine) and corresponding metal salts. X-ray diffraction analysis reveals that the three polymers exhibit novel frameworks due to diverse coordination conformations and different acid forms of the flexible tricaboxylate ligands. The isostructural complexes 1 and 2 possess 2D frameworks with M(H2O)(2)(CO2)(2) chains bridged by the ligands, and the resulting 3D networks were extended through R-2(2)(8) hydrogen bonds between the undeprotonated carboxylate groups and the triazine rings as well as pi center dot center dot center dot pi interactions between the triazine rings. Complex 3 shows a 3D interpenetrating compact network with inorganic Cd2O2 chains interconnected by the flexible organic ligands. Topological analysis indicates that in all three complexes the tripodal ligand acts as a four-connected square-planar node, linking four-connected square-planar or tetrahedral-connected metal centers to form interesting two-dimensional (2D) (4,4) (in 1 and 2) and three-dimensional (3D) 2-fold interpenetrating PtS topologies (in 3), respectively. Interestingly, both 1 and 2 exhibit ferromagnetic interactions within the chains bridged by the syn-anti carboxylate groups and the water molecules alternately, and complex 3 displays strong photoluminescent properties at 413 nm due to the coordination of the ligands with the metal centers.

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