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Title: Syntheses, crystal structures, and properties of new metal-5-bromonicotinate coordination polymers

Abstract

Four metal–5-bromonicotinate (Brnic) coordination polymers [Fe(Brnic){sub 2}(H{sub 2}O){sub 2}]{sub n} (1), [Ni(Brnic){sub 2}]{sub n} (2), [Ni(Brnic)(bpy)(H{sub 2}O){sub 2}]{sub n}·n(Brnic)·4.5nH{sub 2}O (3), and [Co{sub 2}(Brnic){sub 3}(bpy){sub 2}(OH)]{sub n}·nH{sub 2}O (4) have been synthesized and structurally characterized (bpy=4,4′-bipyridine). Complex 1 has corrugated (4,4) sheets formed by μ-Brnic ligands and planar nodes Fe(II). As for 2–4, they all built up from Brnic-bridged dinuclear subunits, but have very different structure features. Complex 2 is a twin-like polymer with (4,4) layers formed by twin paddle-wheel [Ni{sub 2}(Brnic){sub 4}] subunits. Through the bridge coordination of bpy ligands with dinuclear rings [Ni{sub 2}(Brnic){sub 2}] and trigons [Co{sub 2}(Brnic){sub 3}(OH)], 6{sup 3}-topological cationic layers with nanosized grids of 3 and chiral ladder-type double chains of 4 formed, respectively. Notably, halogen-related interactions play an important role in the formation of 3D metallosupermolecules 1–4. The thermostabilities of all compounds have been discussed in detail. Moreover, the magnetic investigations of 2 and 4 indicate that there exist antiferromagnetic interactions in the paddle-wheel [Ni{sub 2}(Brnic){sub 4}] and trigon [Co{sub 2}(Brnic){sub 3}(OH)] cores, respectively. - Highlights: • Four novel metal–5-bromonicotinate coordination polymers have been synthesized. • Notably, halogen-related interactions play an important role in the formation of 3D metallosupermolecules. • Antiferromagnetic interactions inmore » nickel(II) paddle-wheel and cobalt(II) trigon cores were observed.« less

Authors:
 [1];  [2]; ;  [1];  [1]
  1. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450052 (China)
  2. Department of Environmental and Municipal Engineering, North China University of Water Conservancy and Electric Power, Zhengzhou 450011 (China)
Publication Date:
OSTI Identifier:
22475607
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 225; Other Information: Copyright (c) 2015 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; ANTIFERROMAGNETISM; BIPYRIDINES; CARBON DIOXIDE; CHIRALITY; COBALT BROMIDES; CRYSTAL STRUCTURE; HYDRATES; IRON BROMIDES; LAYERS; LIGANDS; NANOSTRUCTURES; NICKEL BROMIDES; SHEETS; SYNTHESIS

Citation Formats

Li, Wenjie, Li, Guoting, Lv, Lulu, Zhao, Hong, and Wu, Benlai, E-mail: wbl@zzu.edu.cn. Syntheses, crystal structures, and properties of new metal-5-bromonicotinate coordination polymers. United States: N. p., 2015. Web. doi:10.1016/J.JSSC.2015.01.002.
Li, Wenjie, Li, Guoting, Lv, Lulu, Zhao, Hong, & Wu, Benlai, E-mail: wbl@zzu.edu.cn. Syntheses, crystal structures, and properties of new metal-5-bromonicotinate coordination polymers. United States. doi:10.1016/J.JSSC.2015.01.002.
Li, Wenjie, Li, Guoting, Lv, Lulu, Zhao, Hong, and Wu, Benlai, E-mail: wbl@zzu.edu.cn. Fri . "Syntheses, crystal structures, and properties of new metal-5-bromonicotinate coordination polymers". United States. doi:10.1016/J.JSSC.2015.01.002.
@article{osti_22475607,
title = {Syntheses, crystal structures, and properties of new metal-5-bromonicotinate coordination polymers},
author = {Li, Wenjie and Li, Guoting and Lv, Lulu and Zhao, Hong and Wu, Benlai, E-mail: wbl@zzu.edu.cn},
abstractNote = {Four metal–5-bromonicotinate (Brnic) coordination polymers [Fe(Brnic){sub 2}(H{sub 2}O){sub 2}]{sub n} (1), [Ni(Brnic){sub 2}]{sub n} (2), [Ni(Brnic)(bpy)(H{sub 2}O){sub 2}]{sub n}·n(Brnic)·4.5nH{sub 2}O (3), and [Co{sub 2}(Brnic){sub 3}(bpy){sub 2}(OH)]{sub n}·nH{sub 2}O (4) have been synthesized and structurally characterized (bpy=4,4′-bipyridine). Complex 1 has corrugated (4,4) sheets formed by μ-Brnic ligands and planar nodes Fe(II). As for 2–4, they all built up from Brnic-bridged dinuclear subunits, but have very different structure features. Complex 2 is a twin-like polymer with (4,4) layers formed by twin paddle-wheel [Ni{sub 2}(Brnic){sub 4}] subunits. Through the bridge coordination of bpy ligands with dinuclear rings [Ni{sub 2}(Brnic){sub 2}] and trigons [Co{sub 2}(Brnic){sub 3}(OH)], 6{sup 3}-topological cationic layers with nanosized grids of 3 and chiral ladder-type double chains of 4 formed, respectively. Notably, halogen-related interactions play an important role in the formation of 3D metallosupermolecules 1–4. The thermostabilities of all compounds have been discussed in detail. Moreover, the magnetic investigations of 2 and 4 indicate that there exist antiferromagnetic interactions in the paddle-wheel [Ni{sub 2}(Brnic){sub 4}] and trigon [Co{sub 2}(Brnic){sub 3}(OH)] cores, respectively. - Highlights: • Four novel metal–5-bromonicotinate coordination polymers have been synthesized. • Notably, halogen-related interactions play an important role in the formation of 3D metallosupermolecules. • Antiferromagnetic interactions in nickel(II) paddle-wheel and cobalt(II) trigon cores were observed.},
doi = {10.1016/J.JSSC.2015.01.002},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 225,
place = {United States},
year = {2015},
month = {5}
}