title: cis-Bis(dicyanamido)bis(1,10-phenanthroline)manganese(II) and cis-bis(dicyanamido)bis(1,10-phenanthroline)zinc(II).
abstract: The title compounds are isomorphous, comprised of neutral monomeric [M(phen)(2)(dca)(2)] [(I): M = Mn, (II): M = Zn; phen is 1,10-phenanthroline, C(12)H(8)N(2); dca is dicyanamide, C(2)N(3)] molecules. In the molecule, the divalent metal ion is in a distorted octahedral coordination environment formed by six N atoms from the phen and dca ligands. The Mn-N [2.144 (2)-2.319 (2) A] and Zn-N [2.075 (2)-2.245 (2) A] distances are in agreement with the difference in size of the two divalent ions.
authors.affiliation: State Key Laboratory of Rare Earth Materials Chemistry and Applications and PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, Peking University - Nonius BV Demo Lab. For X-ray Diffraction, Department of Chemistry, Peking University, Beijing 100871, People's Republic of China.
authors.forename: Zhe Ming
authors.initials: ZM
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Luo
authors.forename: Bai Wang
authors.initials: BW
authors.lastname: Sun
authors.forename: Chun Hua
authors.initials: CH
authors.lastname: Yan
authors.forename: Chun Sheng
authors.initials: CS
authors.lastname: Liao
authors.forename: Song
authors.initials: S
authors.lastname: Gao