rac-catena-Poly[nickel(II)-di-μ-tryptophanato]

✍ Scribed by Wang, Jian ;Xu, Xingyou ;Ma, Weixing ;Lu, Lude ;Yang, Xvjie

• Publisher: International Union of Crystallography
• Year: 2007
• Tongue: English
• Weight: 542 KB
• Volume: 63
• Category: Article
• ISSN: 1600-5368
• DOI: 10.1107/s1600536807053421

✦ Synopsis

The title complex, [Ni(C~11~H~11~N~2~O~2~)~2~]~n~ or [Ni(D-trp)(L-trp)]~n~ [D-trp = (R)-2-amino-3-(3-indolyl)propionate and L-trp = (S)-2-amino-3-(3-indolyl)propionate], was formed by a hydrothermal method from hexaaquanickel(II) perchlorate and L-tryptophan. The Ni^II^ atom is located on an inversion center and has an octahedral coordination geometry formed by four O atoms and two N atoms from D– and L-tryptophan ligands. Each D– and L-tryptophan ligand bridges the Ni^II^ atoms through the carboxylate group, leading to a two-dimensional structure parallel to the bc plane.