Au2(μ-1,2-bis(diphenylphosphino)ethane)2Br2*acetonitrile | 1310918-40-1

• 英文名称: Au2(μ-1,2-bis(diphenylphosphino)ethane)2Br2*acetonitrile
• CAS: 1310918-40-1
• 化学式: C₂H₃N*C₅₂H₄₈Au₂Br₂P₄
• 分子量: 1391.64
• InChiKey: IQTQPBUQZBKDGG-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  1,2-双(二苯基膦)乙烷 以 二氯甲烷 、 乙腈 为溶剂， 生成 Au2(μ-1,2-bis(diphenylphosphino)ethane)2Br2*acetonitrile
  参考文献：
  名称：

  Molecular Accordion: Vapoluminescence and Molecular Flexibility in the Orange and Green Luminescent Crystals of the Dimer, Au₂(μ-bis-(diphenylphosphino)ethane)₂Br₂

  摘要：

  Solutions containing the components Au+, dppe (dppe is bis(diphenylphosphino)ethane), and Br- in a 1:1:1 ratio can produce three different types of crystals: type A, orange luminescent solvates of the dimer Au-2(dppe)(2)Br-2 (Au-2(mu-dppe)(2)Br-2 center dot 2(OSMe2), Au-2(mu-dppe)(2)Br-2 center dot 2(OCMe2), Au-2(mu-dppe)(2)Br-2 center dot 2(CH2Cl2), Au-2(mu-dppe)(2)Br-2 center dot 2(HC(O)NMe2)); type B, green luminescent solvates of the same dimer (Au-2(mu-dppe)(2)Br-2 center dot(NCMe) and Au-2(mu-dppe)(2)Br-2 center dot 0.5(C4H10O)); and type C, orange luminescent solvates of a polymer ({Au(mu-dppe)Br}(n)center dot 0.5(C4H10O) and {Au(mu-dppe)Br}(n)center dot(CH2Cl2)). Some crystals of types A are solvoluminescent. Exposure of type A crystals of Au-2(mu-dppe)(2)Br-2 center dot 2(OCMe2) or Au-2(mu-dppe)(2)Br-2 center dot 2 (CH2Cl2) to air or vacuum results in the loss of the orange luminescence and the formation of new green luminescent crystals. Subsequent exposure of these crystals to acetone or dichloromethane vapor results in the reformation of crystals of type A. The dimeric complexes in crystals of types A and B are all centrosymmetric and share a common ring conformation. Within these dimers, the coordination geometry of each gold center is planar with a P2Br donor set. In other respects, the Au-2(mu-dppe)(2)Br-2 molecule is remarkably flexible and behaves as a molecular accordion, whose dimensions depend upon the solvate content of a particular crystalline phase. In particular, the dimer Au-2(mu-dppe)(2)Br-2 is able to accommodate Au center dot center dot center dot Au separations that range from 3.8479(3) to 3.0943(2) angstrom, and these variations along with alterations in the Au-Br distances and in the P-Au-P angles are the likely causes of the differences in the luminescence properties of these crystals.

  DOI：

  10.1021/ja2026807