Kanters, J.a.; Harder, S.; Poonia, N.s.:

Coordination chemistry of alkali and alkaline earth cations: the structure of bis(3,5-dinitrobenzoato)(tetraethyleneglycol)strontium(II) monohydrate.

In: Acta Crystallographica, Section C: Crystal Structure Communications (Acta Crystallogr.Sect.C Cryst.Struct.Commun.), Jg. C43 (1987) ; Nr. 6, S. 1042-1045
ISSN: 0108-2701
Zeitschriftenaufsatz / Fach: Chemie
Abstract:
m-(3,5-Dinitrobenzoate-O,m-O')-{2,2'-[oxybis(ethyleneoxy)]diethanol}strontium(II) 3,5-dinitrobenzoate monohydrate is triclinic, space group P.hivin.1, and a 9.070(1), b 13.067(1), c 13.716(1) .ANG., a 110.74(1), b 103.91(1), and g 95.83(1) Deg; Z = 2 for dc = 1.664. The final R = 0.052 for 4605 reflections. Sr is coordinated to all 5 O atoms of tetraethyleneglycol (TEG), to H2O and both O atoms of the carboxyl group of 1 dinitrobenzoate (DNB1) and 1 O atom of the carboxyl group of a centrosym. related DNB1. The centrosymmtrically related Sr atoms are sepd. by a short distances of 4.401(1) .ANG., which results in a closely packed cluster. The terminal OH groups of TEG form H bonds with the O atoms of the carboxyl group of the 2nd dinitrobenzoate residue (DNB2), which is charge sepd. from Sr. The H2O mol. is H bonded to a terminal O atom of TEG and an O atom of the carboxyl group of DNB2 and thus serves as a link between the Sr clusters. Two neighboring C-C bonds at 1 terminal end of TEG are disordered over 2 positions. At. coordinates are given.