[W(CO)5(3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane)] | 685867-71-4

• 英文名称: [W(CO)5(3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane)]
• CAS: 685867-71-4
• 化学式: C₁₄H₁₆N₃O₇PW
• 分子量: 553.121
• InChiKey: BLRNYWHTGJBFNN-UHFFFAOYSA-N

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：

  六羰基钨 、 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane 以 四氢呋喃 为溶剂， 以80%的产率得到[W(CO)5(3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane)]
  参考文献：
  名称：

  A New Water-Soluble Phosphine Derived from 1,3,5-Triaza-7-phosphaadamantane (PTA), 3,7-Diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane. Structural, Bonding, and Solubility Properties

  摘要：

  The phosphine 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane, which we will condense to DAPTA, and its oxide have been fully characterized both in solution and in the solid state. These compounds were prepared by acylation of 1,3,5-triaza-7-phosphaadaman-tane (PTA) and its oxide with acetic anhydride. The nonionic compounds were found to be soluble in most common organic solvents, in addition to possessing extremely large molar solubilities in water. Indeed, the molar solubility of DAPTA was shown to be 7.4 M, which is 4 time more soluble than the commonly utilized water-soluble phosplaine, triply meta-sulfonated triphenylphosphine (TPPTS). In the case of DAPTA this enhanced water solubility is attributed to a strong interaction of water with the amide nitrogen-CO bond dipole as revealed by a large red shift of the nu(C=O) vibration on going from a weakly interacting solvent such as CH2Cl2 to water. This latter observation is supported by the short average amide nitrogen-carbonyl carbon bond distance of 1.375 Angstrom as determined via X-ray crystallography, indicative of a strong Coulombic interaction between the nitrogen and carbon atoms. To assess the metal to phosphorus binding characteristics of DAPTA, several group 10 and group 6 complexes were prepared and their M-P bond distances were shown to be quite similar with those of their PTA analogues. For examples, the W-P bond distance in W(CO)(5)DAPTA of 2.492(3) Angstrom is comparable to that previously reported for W(CO)(5)PTA of 2.4976(15) Angstrom and slighter shorter than that found in W(CO)(5)PMe3 (2.516(2) Angstrom). Accordingly, the PTA ligand has generally been characterized as possessing donor properties similar to that of PMe3. Consistent with these bonding parameters determined in the solid state, all three tungsten pentacarbonyl complexes have nearly identical v(CO) frequencies in solution.

  DOI：

  10.1021/om0343059