Synthese und Struktur von <i>N</i>,<i>N</i>,<i>N</i>‴,<i>N</i>‴‐Tetraisobutyl‐<i>N</i>′,<i>N</i>″‐isophthaloylbis(thioharnstoff) und Dimethanol‐bis(<i>N</i>,<i>N</i>,<i>N</i>‴,<i>N</i>‴‐tetraisobutyl‐<i>N</i>′,<i>N</i>″‐isophthaloylbis(thioureato))dicobalt(II)

Abstract

Abstract Synthesis and Structure of N , N , N ‴, N ‴‐Tetraisobutyl‐ N ′, N ″‐isophthaloylbis(thiourea) and Dimethanol‐bis( N , N , N ‴, N ‴‐tetraisobutyl‐ N ′, N ″‐isophthaloylbis(thioureato))dicobalt(II) The synthesis and the crystal structure of the ligand N , N , N ‴, N ‴‐tetraisobutyl‐ N ′, N ″‐isophthaloylbis(thiourea) and its Co II ‐complex are reported. The ligand co‐ordinates quadridentately forming a di‐bischelate. The donor atoms O and S are arranged in cis ‐position around the central Co II ions. In addition the co‐ordination geometry is determined by methanol molecules resulting in the co‐ordination number five. The complex crystallizes in the space group P 1 (Z = 1) with two additional methanol molecules per formula unit. The free ligand crystallizes in the space group P 1 (Z = 2) with one methanol molecule per formula unit. It shows the typical keto form of N ‐acylthioureas with a protonated central N atom. The structures of both acylthiourea fragments come close to E,Z′‐configurations.