Crystal and molecular structures of several tetrakis (nitrile)copper(I) complexes |
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Authors: | Jacqueline M Knaust Douglas A Knight Steven W Keller |
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Institution: | (1) Department of Chemistry, University of Missouri–Columbia, Columbia, Missouri, 65211 |
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Abstract: | The crystal structures of several Cu(RCN)4]X salts (R = Me, X = SO3CF3
–; R = Ph, X = BF4
–, ClO4
–, and PF6
–) were determined using single crystal X-ray diffraction. All of the compounds contain distorted tetrahedral Cu(I) centers and noncoordinating anions, with the acetonitrile and benzonitrile structures containing three and one unique CuL4
+ complex in their respective asymmetric units. One important distortion is observed in the benzonitrile-Cu bonds, which are bent up to 23° away from linearity. The result is a flattened complex that maximizes the – tacking of the aromatic rings and is the dominant packing interactions between the complexes. |
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Keywords: | Copper(I) compounds noncoordinating anions |
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