trans-1,1,2,3,3,4-hexa-tert-butylcyclotetrasilane | 116888-90-5

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: trans-1,1,2,3,3,4-hexa-tert-butylcyclotetrasilane
• 英文别名: trans-1,1,2,3,3,4-Hexa-tert-butylcyclotetrasilan；1,1,2,3,3,4-Hexa-tert-butyltetrasiletane；1,1,2,3,3,4-hexatert-butyltetrasiletane
• CAS: 116888-90-5
• 化学式: C₂₄H₅₆Si₄
• 分子量: 457.051
• InChiKey: RBBSMEZRAAXFSF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.47
• 重原子数：
  28
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  二叔丁基氯硅烷 在 lithium 作用下， 以 四氢呋喃 为溶剂， 反应 20.0h， 以5%的产率得到hepta-tert-butylcyclotetrasilane
  参考文献：
  名称：

  Hepta-tert-butylcyclotetrasilane: a highly crowded cyclotetrasilane

  摘要：

  The reaction of di-tert-butyldichlorosilane with lithium produced hepta-tert-butylcyclotetrasilane (1) and trans-1,1,2,3,3,4-hexa-tert-butylcyclotetrasilane (2). The structures of 1 and 2 were determined by X-ray crystallography. Crystal data for 1: orthorhombic, Cmcm, a = 12.071(1) Angstrom, b = 17.964(2) Angstrom, c = 15.431(4) Angstrom, V = 3346.0(8) Angstrom(3), Z = 4, R = 0.067, R(W) = 0.051 for 1160 reflections. Crystal data for 2: tetragonal, P4(2)/m, a = 9.159(1) Angstrom, c = 18.292(1) Angstrom, V = 1534.6(2) Angstrom(3), Z = 2, R = 0.047, R(W) = 0.056 for 768 reflections. Compound 1 is a highly crowded molecule which contains unusually long Si-Si bonds (2.542(2) Angstrom) and a folded cyclotetrasilane ring with relatively small dihedral angles of 15.2 degrees and 16.1 degrees. In the UV spectrum of 1, absorption extends to the longer wavelength region than 2 and other alkyl-substituted cyclotetrasilanes so far reported. The oxidation potential of 1 (1.02 V vs. SCE) is significantly low compared with those of 2 and other less crowded cyclotetrasilanes.

  DOI：

  10.1016/0022-328x(95)00317-j

文献信息

• Boudjouk, Philip; Samaraweera, Upasiri; Sooriyakumaran, Ratnasabapathy, Angewandte Chemie, 1988, vol. 100, # 10, p. 1406 - 1407
  作者：Boudjouk, Philip、Samaraweera, Upasiri、Sooriyakumaran, Ratnasabapathy、Chrisciel, Jerzy、Anderson, Kevin R.

  DOI：——

  日期：——
• Hepta-tert-butylcyclotetrasilane: a highly crowded cyclotetrasilane
  作者：Soichiro Kyushin、Haruaki Sakurai、Hideyuki Matsumoto

  DOI：10.1016/0022-328x(95)00317-j

  日期：1995.9

  The reaction of di-tert-butyldichlorosilane with lithium produced hepta-tert-butylcyclotetrasilane (1) and trans-1,1,2,3,3,4-hexa-tert-butylcyclotetrasilane (2). The structures of 1 and 2 were determined by X-ray crystallography. Crystal data for 1: orthorhombic, Cmcm, a = 12.071(1) Angstrom, b = 17.964(2) Angstrom, c = 15.431(4) Angstrom, V = 3346.0(8) Angstrom(3), Z = 4, R = 0.067, R(W) = 0.051 for 1160 reflections. Crystal data for 2: tetragonal, P4(2)/m, a = 9.159(1) Angstrom, c = 18.292(1) Angstrom, V = 1534.6(2) Angstrom(3), Z = 2, R = 0.047, R(W) = 0.056 for 768 reflections. Compound 1 is a highly crowded molecule which contains unusually long Si-Si bonds (2.542(2) Angstrom) and a folded cyclotetrasilane ring with relatively small dihedral angles of 15.2 degrees and 16.1 degrees. In the UV spectrum of 1, absorption extends to the longer wavelength region than 2 and other alkyl-substituted cyclotetrasilanes so far reported. The oxidation potential of 1 (1.02 V vs. SCE) is significantly low compared with those of 2 and other less crowded cyclotetrasilanes.