Determination of the Solvothermal Synthesis Mechanism of Metal Imidazolates by X-ray Single-Crystal Studies of a Photoluminescent Cadmium(II) Imidazolate and Its Intermediate Involving Piperazine
✍ Scribed by Yun-Qi Tian; Li Xu; Chen-Xin Cai; Ji-Chong Wei; Yi-Zhi Li; Xiao-Zeng You
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 187 KB
- Volume
- 2004
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
Abstract
Cadmium(II) imidazolate (3), with a twofold interpenetrating diamondoid net, was obtained in a manner similar to cobalt(II) imidazolate. In the process, a crystallized intermediate involving piperazine (2), which was suitable for X‐ray single crystal study, was isolated. Based on the composition of 2, a mechanism for the solvothermal synthesis of metal imidazolates was proposed. 3: a = 9.931(2), b = 10.739(2), c = 14.622(3) Å, α = β = γ = 90°, orthorhombic, Pcab; 2: a = 8.243(2), b = 9.883(2), c = 12.471(3) Å, α = 107.89(3)°, β = 92.56(3)°, γ = 100.87(3)°, triclinic, P$\bar 1$
. Both compounds are photoluminescent with λ~max~ = 459 nm for 3 and 444 nm for 2; they also display quenching of the fluorescence with τ ≈︁ 5 ns. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2002)