[Ag2Br2(μ-S-pySH)2(PPh3)2] | 329201-12-9

• 英文名称: [Ag2Br2(μ-S-pySH)2(PPh3)2]
• 英文别名: [Ag2Br2(μ-S-puridine-2-thione)2(triphenylphosphine)2]
• CAS: 329201-12-9
• 化学式: C₄₆H₄₀Ag₂Br₂N₂P₂S₂
• 分子量: 1122.46
• InChiKey: KCMNUXMFMAPVBA-UHFFFAOYSA-L

反应信息

• 作为反应物：
  描述：

  [Ag2Br2(μ-S-pySH)2(PPh3)2] 以 氘代氯仿 为溶剂， 生成 AgBr(pySH)(PPh3)2
  参考文献：
  名称：

  Pyridine-2-thione (pySH) derivatives of silver(I): Synthesis and crystal structures of dinuclear [Ag2Cl2(μ-S-pySH)2(PPh3)2] and [Ag2Br2(μ-S-pySH)2(PPh3)2] complexes

  摘要：

  Reaction of silver(I) halides with PPh3 in acetonitrile and then with pyridine-2-thione (pySH) chloroform (1:1:1 molar ratio) has yielded sulfur bridged dimers; of general formula, [Ag2X2(mu-S-pySH)(2)(PPh3)(2)] (X = Cl, 1, Br, 2). Both these complexes have been characterized using analytical data, NMR spectroscopy and single crystal X-crystallography. The central Ag2S2 cores form parallelograms with unequal Ag-S bond distances (2.5832(8), 2.7208(11) angstrom) in 1 and (2.6306(4), 2.6950(7) angstrom) in 2, respectively. The Ag center dot center dot center dot Ag contacts of compounds 1 and 2 are 3.8425(8) and 3.821](4) angstrom, respectively. The angles around Ag (in the range 87.19(2)-121.71(2)degrees in 1 and 87.81(2)-121.53(2)degrees in 2) reveal highly distorted tetrahedral geometry. There are inter dimer pi-pi stacking interactions between pyridyl rings (inter ring distances of 3.498 and 3.510 angstrom in complexes 1 and 2, respectively). The solution state P-31 NMR spectroscopy has shown the existence of both monomers and dimers. The studies reveal relatively weaker intramolecular -NH center dot center dot center dot Cl hydrogen bonding in case of AgCl vis-a-vis that in CuCl which favored both a monomer and a dimer with AgCl, and only a monomer with CuCl. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2008.01.008
• 作为产物：
  描述：

  三苯基膦 、 2-巯基吡啶 、 silver(I) bromide 以 乙腈 为溶剂， 以65%的产率得到[Ag2Br2(μ-S-pySH)2(PPh3)2]
  参考文献：
  名称：

  Pyridine-2-thione (pySH) derivatives of silver(I): Synthesis and crystal structures of dinuclear [Ag2Cl2(μ-S-pySH)2(PPh3)2] and [Ag2Br2(μ-S-pySH)2(PPh3)2] complexes

  摘要：

  Reaction of silver(I) halides with PPh3 in acetonitrile and then with pyridine-2-thione (pySH) chloroform (1:1:1 molar ratio) has yielded sulfur bridged dimers; of general formula, [Ag2X2(mu-S-pySH)(2)(PPh3)(2)] (X = Cl, 1, Br, 2). Both these complexes have been characterized using analytical data, NMR spectroscopy and single crystal X-crystallography. The central Ag2S2 cores form parallelograms with unequal Ag-S bond distances (2.5832(8), 2.7208(11) angstrom) in 1 and (2.6306(4), 2.6950(7) angstrom) in 2, respectively. The Ag center dot center dot center dot Ag contacts of compounds 1 and 2 are 3.8425(8) and 3.821](4) angstrom, respectively. The angles around Ag (in the range 87.19(2)-121.71(2)degrees in 1 and 87.81(2)-121.53(2)degrees in 2) reveal highly distorted tetrahedral geometry. There are inter dimer pi-pi stacking interactions between pyridyl rings (inter ring distances of 3.498 and 3.510 angstrom in complexes 1 and 2, respectively). The solution state P-31 NMR spectroscopy has shown the existence of both monomers and dimers. The studies reveal relatively weaker intramolecular -NH center dot center dot center dot Cl hydrogen bonding in case of AgCl vis-a-vis that in CuCl which favored both a monomer and a dimer with AgCl, and only a monomer with CuCl. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2008.01.008