Cocrystallized Dinuclear−Mononuclear CuII3NaI and Double-Decker−Triple-Decker CuII5KI3 Complexes Derived from <

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• 作者：Susanta Hazra ; Rajesh Koner ; Malabika Nayak ; Hazel A. Sparkes ; Judith A. K. Howard ; Sasankasekhar Mohanta
• 刊名：Crystal Growth & Design
• 出版年：2009
• 出版时间：August 5, 2009
• 年：2009
• 卷：9
• 期：8
• 页码：3603-3608
• 全文大小：205K
• 年卷期：v.9,no.8(August 5, 2009)
• ISSN：1528-7505

文摘

The syntheses and structures of a [2×1+1×2] cocrystal [{Cu^IIL¹Na^I(H₂O)₂}{Cu^IIL¹}₂](NO₃) (1) and [3×1+5×1] cocrystal [{(Cu^IIL¹)₂K^I}(NO₃)]·[{(Cu^IIL¹)₃K^I₂(μ-NO₃)}(NO₃)]·0.2H₂O (2) derived from the hexadentate Schiff base compartmental ligand N,N′-ethylenebis(3-ethoxysalicylaldimine) (H₂L¹) are described. Compounds 1 and 2 crystallize in triclinic P and monoclinic P2₁/c systems, respectively. The structure of 1 consists of the [Cu^IIL¹Νa^I(H₂O)₃]⁺ cation and two mononuclear [Cu^IIL¹] moieties. In the dinuclear [Cu^IIL¹Νa^I(H₂O)₃]⁺ cation, the metal centers are doubly bridged by the two phenolate oxygen atoms. Each of the two coordinated water molecules of the dinuclear unit is encapsulated in the O₄ cavities of the two mononuclear [Cu^IIL¹] moieties resulting in the formation of a [2×1+1×2] cocrystal. In compound 2, one trinuclear double-decker system [{(Cu^IIL¹)₂K^I}(NO₃)] and one pentanuclear triple-decker system [{(Cu^IIL¹)₃K^I₂(μ-NO₃)}(NO₃)] are cocrystallized. Evidently, compound 2 is a [3×1+5×1] cocrystal. Structural resemblance of 3d metal ions with Na(I) and a rare example of double-decker−triple-decker cocrystal are the major outcomes of the present investigation.