Concept for Enhancement of the Stability of Calcium-Bound Pyrazolyl-Substituted Methanides
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https://figshare.com/articles/dataset/Concept_for_Enhancement_of_the_Stability_of_Calcium_Bound_Pyrazolyl_Substituted_Methanides/2191852
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资源简介：
Metalation
of bis(3-thiophen-2-ylpyrazol-1-yl)phenylmethane [2,
which is accessible from the reaction of bis(3-thien-2-ylpyrazol-1-yl)methanone
(1) with triphosgene] with [(thf)2Ca{N(SiMe3)2}2] in tetrahydrofuran and subsequent
crystallization from a mixture of toluene and 1,2-dimethoxyethane
yield [(dme)Ca{C(Pzth)2Ph}{N(SiMe3)2}] (3). The α,α-bis(3-thiophen-2-ylpyrazol-1-yl)benzyl
ligand exhibits a κ2N,κC-coordination mode with a Ca–C σ-bond length
of 262.8(2) pm. The crystalline compound is stable if air and moisture
is strictly excluded; however, in solution; this calcium complex slowly
degrades.
创建时间：
2016-02-14
