Volume 628, Issue 3 pp. 620-624
Article

Two Succinato-bridged Zinc(II) Phenanthroline Complexes: [Zn(phen)L2/2](H2L) and [(phen)2Zn(μ-L)Zn(phen)2]L � 11H2O with H2L = Succinic Acid

Yue-Qing Zheng Prof. Dr.

Corresponding Author

Yue-Qing Zheng Prof. Dr.

Ningbo/P. R. China, Municipal Key Laboratory of Inorganic Materials Chemistry, Institute for Solid State Chemistry, Ningbo University

Institute for Solid State Chemistry Ningbo University, Ningbo 315211 P. R. China, Telefax: Int. +574/87600747Search for more papers by this author
Wen-Han Liu

Wen-Han Liu

Hangzhou/P. R. China, Department of Chemical Engineering, Zhejiang University of Technology

Search for more papers by this author
Jian-Li Lin

Jian-Li Lin

Ningbo/P. R. China, Municipal Key Laboratory of Inorganic Materials Chemistry, Institute for Solid State Chemistry, Ningbo University

Search for more papers by this author

Abstract

en

Two mixed ligand ZnII complexes [Zn(phen)L2/2](H2L) (1) and [(phen)2Zn(μ-L)Zn(phen)2]L � 11H2O (2) with H2L = suc-cinic acid were prepared and crystallographically characterized. Complex 1 crystallizes in the monoclinic space group C2/c (no. 15) with a = 13.618(1) Å, b = 9.585(1) Å, c = 15.165(1) Å, β = 96.780(6)°, V = 1965.6(3)Å3, Z = 4 and complex 2 in the triclinic space group P 1¯ (no. 2) with a = 12.989(2)Å, b = 14.464(2)Å, c = 18.025(3)Å, α = 90.01(1)°, β = 109.69(1)°, γ = 112.32(1)°, V = 2917.4(8) Å3, Z = 2. 1 consists of succinic acid molecules and 1D zigzag urn:x-wiley:00442313:media:ZAAC620:tex2gif-stack-1[Zn(phen)(C4H4O4)2/2] polymeric chains, in which the tetrahedrally coordinated Zn atoms are bridged by bis - monodentate succinato ligands. Succinic acid molecules play an important role in supramolecular assemblies of the polymeric chains into 2D layers as well as in the stacking of 2D layers. 2 is composed of [(phen)2Zn(μ-L)Zn(phen)2]2+ complex cations, succinate anions and hydrogen bonded water molecules. Within the divalent cations, Zn atoms are octahedrally coordinated by four N atoms of two phen ligands and two O atoms of one bis-chelating succinato ligand. Through the intermolecular π—π stacking interactions, the complex cations form positively charged 2D layers, between which the noncoordinating succinate anions and water molecules are sandwiched.

Abstract

de

Succinatverbrückte Zink-Phenanthrolin-Komplexe: [Zn(phen)L2/2](H2L) und [(phen)2Zn(μ-L)Zn(phen)2]L � 11H2O mit H2L = Bernsteinsäure

Die ZnII—Komplexe [Zn(phen)L2/2](H2L) (1) und [(phen)2Zn(μ—L)Zn(phen)2]L�11H2O (2) mit H2L = Bernsteinsäure wurden dargestellt und röntgenographisch charakterisiert. 1 kristallisiert in der monoklinen Raumgruppe C2/c (Nr. 15) mit a = 13, 618(1) Å, b = 9, 585(1) Å, c = 15, 165(1) Å, β = 96, 780(6)°, V = 1965, 6(3) Å3 , Z = 4 und 2 in der triklinen Raumgruppe P 1¯ (Nr. 2) mit a = 12, 989(2) Å, b = 14, 464(2) Å, c = 18, 025(3) Å , α = 90, 01(1)°, β = 109, 69(1)°, γ = 112, 32(1)°, V = 2917, 4(8) AÅ3, Z = 2. 1 setzt sich aus Bernsteinsäure-Molekülen und zickzackfömigen urn:x-wiley:00442313:media:ZAAC620:tex2gif-stack-2[Zn(phen)(C4H4O4)2/2]]—Ketten, in denen tetraederisch koordinierte Zn-Atome über bis-einzähnige Succinato-Liganden verbrückt sind, zusammen. Die Bernsteinsäure-Moleküle spielen eine wichtige Rolle beim supramolekularen Aufbau der polymeren Ketten zu 2D-Schichten. 2 wird von den [(phen)2Zn(μ-L)Zn(phen)2]2+-Kationen, den Succinat-Anionen und den über H-Brücken gebundenen H2O—Molekülen gebildet. Innerhalb der zweiwertigen Kationen sind Zn-Atome oktaedrisch von vier N-Atomen zweier Phen-Liganden und zwei O-Atomen eines bis-chelatisierenden Succinato-Liganden koordiniert. Durch intermolekulare π—π—Wechselwirkungen bilden die komplexen Kationen positiv geladene 2D-Schichten, zwischen denen die nicht-koordinierenden Succinat-Anionen und H2O-Moleküle eingelagert sind.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.