SnCl(CH3)2(1,2-bis(1H-benzimidazol-2-yl)ethane-1,2-diol(-1H)) | 1345456-46-3

• 英文名称: SnCl(CH3)2(1,2-bis(1H-benzimidazol-2-yl)ethane-1,2-diol(-1H))
• CAS: 1345456-46-3
• 化学式: C₁₈H₁₉ClN₄O₂Sn
• 分子量: 477.537
• InChiKey: VKZQHNGKJBCIAP-UHFFFAOYSA-M

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(1H-苯并咪唑-2-基)乙烷-1,2-二醇 、 二甲基二氯化锡 以 甲醇 为溶剂， 以56%的产率得到SnCl(CH3)2(1,2-bis(1H-benzimidazol-2-yl)ethane-1,2-diol(-1H))
  参考文献：
  名称：

  In vitro binding studies of organotin(IV) complexes of 1,2-bis(1H-benzimidazol-2-yl)ethane-1,2-diol with CT-DNA and nucleotides (5′-GMP and 5′-TMP): Effect of the ancillary ligand on the binding propensity

  摘要：

  The chiral benzimidazole ligand, 1,2-Bis(1H-benzimidazol-2-yl)ethane-1,2-diol, L, exhibiting coordination mode with an oxygen atom of alcohol group directed towards the metal ion and another -OH group with different molecular axis directed away from the metal center was utilized as a building block for organotin complexes [C18H19N4O2SnCl], [C28H23N4O2SnCl] and [C52H42N4O2Sn2] (1-3). Complexes 1 and 3 exhibit a pentacoordinate geometry while the complex 2 reveals hexacoordinated environment around the Sn(IV) metal ions as evidenced by Sn-119 NMR studies. The DNA binding ability of benzimidazole ligand and their organotin(IV) complexes 1-3 were examined by employing different biophysical methods. The absorption titration of the complexes with CT-DNA reveal significant hyperchromic effect together with strong bathochromic shift of 4-5 nm which infer substantial binding of the complexes with CT-DNA. The intrinsic binding constant K-b values of the complexes 1-3 were found to be 2.16 +/- 0.04 x 10(4), 3.47 +/- 0.04 x 10(4) and 4.60 +/- 0.04 x 10(3) M-1, respectively, suggesting pronounced binding of complex 2 with DNA double helix. The mechanism of binding of the complexes was further ascertained by the interaction studies of these complexes with nucleotides (5 '-GMP and 5 '-TMP) using absorption spectroscopy suggesting a clear preference for 5 '-GMP binding which was further authenticated by NMR (H-1 and P-31 NMR) studies. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2011.08.007