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Tris(1,10-phenanthroline-kappa2N,N')cadmium(II) Bis(perchlorate) 3.5-hydrate: A Water Chain Stabilized by Perchlorate Anions

Tris(1,10-phenanthroline-kappa2N,N')cadmium(II) Bis(perchlorate) 3.5-hydrate: A Water Chain Stabilized by Perchlorate Anions

Yu-Hui Sun, Zi-Yi Du, Shi-Yong Zhang, Yan-Fang He, Zhong-Gao Zhou

Acta Crystallogr C. 2010 Apr;66(Pt 4):m104-6.

PMID: 20354289

Abstract:

The title compound, [Cd(C(12)H(8)N(2))(3)](ClO(4))(2).3.5H(2)O, contains a cross-shaped one-dimensional channel along the c axis which encapsulates an ordered water chain. This water chain features a centrosymmetric cyclic water hexamer unit with a chair-like conformation. Neighbouring hexamers are linked by bridging water molecules. The host perchlorate anions recognize and stabilize the guest water chain via three kinds of hydrogen-bond patterns, leading to the formation of a complex one-dimensional {[(H(2)O)(7)(ClO(4))(4)](4-)}(n) anionic chain. One perchlorate acts as a single hydrogen-bond acceptor dangling on the chain, the second perchlorate on the chain serves as a double hydrogen-bond acceptor for only one water molecule to form an R(2)(2)(6) ring, where both entities lie on a twofold axis, while the third perchlorate, which also lies on a twofold axis, accepts two hydrogen bonds from two equivalent water molecules and is involved in the construction of an R(6)(5)(14) ring.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP79490009	Cadmium perchlorate hydrate		79490-00-9	Price

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