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Title: Four Zn(II)/Cd(II)-3-amino-1,2,4-triazolate frameworks constructed by in situ metal/ligand reactions: Structures and fluorescent properties

Abstract

Four Cd(II) and Zn(II) complexes with the in situ-generated ligand of 3-amino-1,2,4-triazolate (AmTAZ{sup -}) were isolated from the solvothermal reactions of the corresponding Cd(II) or Zn(II) salts with 5-amino-1H-1,2,4-triazole-3-carboxylic acid (AmTAZAc). Their structures were determined by single-crystal X-ray diffraction analysis. [Zn(AmTAZ)(CH{sub 3}COO)] (1) presents a two-dimensional framework constructed from Zn(II) ions and {mu}{sub 3}-AmTAZ{sup -} ligands. A remarkable feature of [Zn{sub 4}(AmTAZ){sub 4}(SO{sub 4})(OH)(C{sub 2}O{sub 4}){sub 0.5}].2H{sub 2}O (2) is the construction of the building units of octagonal cylinders which interact with each other by sharing one face or overlapping, resulting in the formation of a three-dimensional framework with three kinds of 1D channels. [Cd(AmTAZ)Br] (3) crystallizes in a chiral space group P2{sub 1}2{sub 1}2{sub 1}, giving a homochiral three-dimensional framework with two types of helical channels (left- and right-handed). Different from the others, the 3-amino-1,2,4-triazole molecules in [Cd(AmTAZH)SO{sub 4}] (4) behave as neutral {mu}{sub 2}-2,4-bridges to connect the two-dimensional CdSO{sub 4} sheets into a three-dimensional framework. Of all, 2 and 3 display different fluorescent properties probably due to different metal ions, coordination environments and structural topologies. - Graphical abstract: The solvothermal reactions of Cd(II) and Zn(II) salts bearing different anions with 5-amino-1H-1,2,4-triazole-3-carboxylic acid (AmTAZAc) produced four Cd(II) and Zn(II)more » MOFs with the in situ-generated 3-amino-1,2,4-triazolate (AmTAZ{sup -}) ion as ligand, which display different structural topologies and fluorescent properties. Display Omitted.« less

Authors:
;  [1]
  1. College of Chemistry and Chemical Engineering, Guangxi Normal University, Yucai Road 15, Guilin 541004 (China)
Publication Date:
OSTI Identifier:
21128413
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 181; Journal Issue: 8; Other Information: DOI: 10.1016/j.jssc.2008.05.007; PII: S0022-4596(08)00240-5; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CADMIUM COMPLEXES; CARBOXYLIC ACIDS; CHIRALITY; MONOCRYSTALS; ORTHORHOMBIC LATTICES; SPACE GROUPS; TOPOLOGY; TRIAZOLES; X-RAY DIFFRACTION; ZINC COMPLEXES

Citation Formats

Zilu, Chen, Xiaoling, Li, and Liang Fupei. Four Zn(II)/Cd(II)-3-amino-1,2,4-triazolate frameworks constructed by in situ metal/ligand reactions: Structures and fluorescent properties. United States: N. p., 2008. Web. doi:10.1016/j.jssc.2008.05.007.
Zilu, Chen, Xiaoling, Li, & Liang Fupei. Four Zn(II)/Cd(II)-3-amino-1,2,4-triazolate frameworks constructed by in situ metal/ligand reactions: Structures and fluorescent properties. United States. https://doi.org/10.1016/j.jssc.2008.05.007
Zilu, Chen, Xiaoling, Li, and Liang Fupei. Fri . "Four Zn(II)/Cd(II)-3-amino-1,2,4-triazolate frameworks constructed by in situ metal/ligand reactions: Structures and fluorescent properties". United States. https://doi.org/10.1016/j.jssc.2008.05.007.
@article{osti_21128413,
title = {Four Zn(II)/Cd(II)-3-amino-1,2,4-triazolate frameworks constructed by in situ metal/ligand reactions: Structures and fluorescent properties},
author = {Zilu, Chen and Xiaoling, Li and Liang Fupei},
abstractNote = {Four Cd(II) and Zn(II) complexes with the in situ-generated ligand of 3-amino-1,2,4-triazolate (AmTAZ{sup -}) were isolated from the solvothermal reactions of the corresponding Cd(II) or Zn(II) salts with 5-amino-1H-1,2,4-triazole-3-carboxylic acid (AmTAZAc). Their structures were determined by single-crystal X-ray diffraction analysis. [Zn(AmTAZ)(CH{sub 3}COO)] (1) presents a two-dimensional framework constructed from Zn(II) ions and {mu}{sub 3}-AmTAZ{sup -} ligands. A remarkable feature of [Zn{sub 4}(AmTAZ){sub 4}(SO{sub 4})(OH)(C{sub 2}O{sub 4}){sub 0.5}].2H{sub 2}O (2) is the construction of the building units of octagonal cylinders which interact with each other by sharing one face or overlapping, resulting in the formation of a three-dimensional framework with three kinds of 1D channels. [Cd(AmTAZ)Br] (3) crystallizes in a chiral space group P2{sub 1}2{sub 1}2{sub 1}, giving a homochiral three-dimensional framework with two types of helical channels (left- and right-handed). Different from the others, the 3-amino-1,2,4-triazole molecules in [Cd(AmTAZH)SO{sub 4}] (4) behave as neutral {mu}{sub 2}-2,4-bridges to connect the two-dimensional CdSO{sub 4} sheets into a three-dimensional framework. Of all, 2 and 3 display different fluorescent properties probably due to different metal ions, coordination environments and structural topologies. - Graphical abstract: The solvothermal reactions of Cd(II) and Zn(II) salts bearing different anions with 5-amino-1H-1,2,4-triazole-3-carboxylic acid (AmTAZAc) produced four Cd(II) and Zn(II) MOFs with the in situ-generated 3-amino-1,2,4-triazolate (AmTAZ{sup -}) ion as ligand, which display different structural topologies and fluorescent properties. Display Omitted.},
doi = {10.1016/j.jssc.2008.05.007},
url = {https://www.osti.gov/biblio/21128413}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 8,
volume = 181,
place = {United States},
year = {2008},
month = {8}
}