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Title: First alkaline earth 2-carbamoyl-4-nitrobenzoate: Synthesis and supramolecular structure
Authors: Srinivasan, Bikshandarkoil R
Shetgaonkar, Santosh Y
Raghavaiah, Pallepogu
Keywords: Coordination chemistry;Magnesium;Crystal structure;Supramolecular bilayer
Issue Date: Dec-2009
Publisher: CSIR
IPC Code: Int. Cl.9 C07F3/02
Abstract: 2-Carbamoyl-4-nitrobenzoic acid (2-ca-4nbaH) has been prepared by alkaline hydrolysis of 4-nitrophthalimide. Aqueous reaction of MgCO3 with 2-ca-4nbaH results in the formation of [Mg(H2O)6](2-ca-4nba)2, which crystallizes in the centrosymmetric monoclinic space group P21/c with Mg(II) situated on an inversion center. The crystal structure consists of a distorted octahedral hexaaquamagnesium(II) cation and a free uncoordinated 2-ca-4nba anion. The cation and anion are involved in three varieties of H-bonding interactions, resulting in a supramolecular bilayer of 2-ca-4nba anions sandwiched between layers of [Mg(H2O)6]2+ cations.
Page(s): 1662-1666
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.48A(12) [December 2009]

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