NDLI: Structural Variations in Coordination Polymers of Sodium and Cesium Dicarboxylates

Content Provider	Springer Nature Link
Author	Nath, Bhaskar Baruah, Jubaraj B.
Copyright Year	2013
Abstract	The coordination polymer {[Na$_{2}$L(μ-H$_{2}$O)(H$_{2}$O)$_{3}$]·H$_{2}$O}$_{ n }$ (1) derived from 2,2′-(phenylmethylidene-bis(3,5-methyl-2-phenyleneoxy)] diacetic acid (H$_{2}$ L) has repeat units comprising of hexa-coordinate diaqua-bridged dinuclear sodium complex ions. These units are connected through intervening mononuclear complex parts having penta-coordinated sodium ions. The sodium ions adopt repeated hexameric chair-like arrangement in the polymer. The cesium salt of H$_{2}$ L namely [Cs(HL)(μ-H$_{2}$O)(H$_{2}$O)]$_{ n }$ (2) is a coordination polymer. In this case one acid group of the ligand is deprotonated and 2 form self-assembly by intermolecular hydrogen bonds between the free carboxylic acid groups. The fluoro-substituted ligand 2,2′-(2-fluorophenylmethyledene-bis(3,5-methyl-2-phenyleneoxy)] diacetic acid (H $_{ 2 }$ L $_{ f }$) forms disodium salt with a composition [{Na$_{2}$L$_{f}$(μ-H$_{2}$O)(H$_{2}$O)$_{3}$}·H$_{2}$O]$_{ n }$ (3); which is a two dimensional coordination polymer. On the other hand the corresponding cesium salt of H $_{ 2 }$ L $_{ f }$ has a composition [{(H$_{2}$O)Cs(μ-H$_{2}$O)(μ-L$_{f}$)Cs(H$_{2}$O)$_{2}$}] (4); which is also a 2-D coordination polymer. The cesium ions are six or nine coordinate in the polymer and the coordination polymer possesses unusual Cs···F–C coordination bond.
Starting Page	381
Ending Page	387
Page Count	7
File Format	PDF
ISSN	15741443
Journal	Journal of Inorganic and Organometallic Polymers and Materials
Volume Number	24
Issue Number	2
e-ISSN	15741451
Language	English
Publisher	Springer US
Publisher Date	2013-09-12
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Alkali-metal Coordination polymer Dicarboxylic acid Mixed coordination Self-assembly Inorganic Chemistry Organic Chemistry Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Polymers and Plastics

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