Open Access[Hydrogen N ‐(phosphonomethyl)iminodiacetato](1,10‐phenanthroline)copper(II) trihydrate: a low‐temperature redetermination
Author(s) -
Shi FaNian,
Rocha João,
Trindade Tito,
Klinowski Jacek,
Almeida Paz Filipe A.
Publication year - 2005
Publication title -
acta crystallographica section e
Language(s) - English
Resource type - Journals
ISSN - 1600-5368
DOI - 10.1107/s1600536805031806
Subject(s) - hydrogen bond , phenanthroline , stacking , chemistry , crystallography , crystal structure , copper , crystallization , molecule , organic chemistry
The room‐temperature crystal structure of the title compound, [Cu(H 2 pmida)(phen)]·3H 2 O [where H 2 pmida 2− is hydrogen N ‐(phosphonomethyl)iminodiacetate, C 5 H 10 NO 7 P 2− , and phen is 1,10‐phenanthroline, C 12 H 8 N 2 ], was recently determined by Pei Lu, Ke, Li, Qin, Zhou, Wu & Du [ Struct. Chem . (2004), 15 , 207–210]. We report here a redetermination, at 180 (2) K, with greatly improved precision. Hydrogen bonds lead to the formation of one‐dimensional tapes which run along the [100] direction of the unit cell. Adjacent tapes are interconnected via π–π offset stacking (between the 1,10‐phenanthroline ligands) and by hydrogen bonds involving the water molecules of crystallization.