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Title: Crystal structure of potassium hydrogen phthalate revisited
Authors: Srinivasan, Bikshandarkoil R
Dhuri, Sunder N
Narvekar, Kedar U
Keywords: Potassium hydrogen phthalate;X-ray structure;µ4-Heptadentate binding;Two-dimensional;Coordination polymer
Issue Date: Dec-2020
Publisher: NISCAIR-CSIR, India
Abstract: The present study provides new insight into the structure of potassium hydrogen phthalate 1. The single crystal X-ray structure of 1 consists of a crystallographically independent potassium cation and a unique hydrogen phthalate anion. The µ4-heptadentate binding mode of the unique hydrogen phthalate ligand organizes the K+ ions into a layer resulting in a two-dimensional (2D) coordination polymer. As a result parallel chains of face-sharing {KO7} polyhedra extending along c are formed. The parallel chains are flanked on either side by hydrogen phthalate wings and are interlinked by vertex sharing of three polyhedra to extend the connectivity along a axis. The structure of 1 is stabilised by π∙∙∙π stacking interactions. A comparative study of the structures of alkali metal hydrogen phthalates is described.
Page(s): 1785-1792
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.59A(12) [December 2020]

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