Abstract
The title compound, {(C2H10N2)[Tl2(C10H2O8)(H2O)2)]}n, was prepared using (enH2)2(btc)·2H2O and thallium(I) nitrate (en = ethylenediamine and btcH4 = benzene-1,2,4,5-tetracarboxylic acid). The enH2 cation and btc ligand are each located on an inversion centre. The TlI atom is seven-coordinated by three btc ligands and two water molecules in an irregular geometry due to the stereochemically active lone pair on the Tl centre. The water molecule and btc ligand are bonded to the Tl atoms in μ- and μ6-forms, respectively, leading to a three-dimensional structure. The crystal structure involves O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds, and also a Tl⋯π interaction of 3.537 (1) Å.
Highlights
The title compound, {(C2H10N2)[Tl2(C10H2O8)(H2O)2)]}n, was prepared using2(btc)Á2H2O and thallium(I) nitrate
The enH2 cation and btc ligand are each located on an inversion centre
The TlI atom is sevencoordinated by three btc ligands and two water molecules in an irregular geometry due to the stereochemically active lone pair on the Tl centre
Summary
Poly[ethylenediaminium [di-l-aqua-(l6benzene-1,2,4,5-tetracarboxylatoj10O1,O10:O2,O20:O20:O4,O40:O5:O5,O50)dithallium(I)]] Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.010 A; R factor = 0.031; wR factor = 0.070; data-to-parameter ratio = 16.7. Crystal data (C2H10N2)[Tl2(C10H2O8)(H2O)2)] Mr = 757.01 Monoclinic, P21=n a = 9.925 (5) Ab = 7.073 (4) Ac = 11.325 (6) A = 98.397 (10)
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