tetracarbonyl{1,2-bis(diphenylphosphino)ethane}iodoniobium | 112713-57-2

• 英文名称: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}iodoniobium
• CAS: 112713-57-2
• 化学式: C₃₀H₂₄INbO₄P₂
• 分子量: 730.277
• InChiKey: ISSXHPLAPAQGSK-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  双(环戊二烯)钴 、 tetracarbonyl{1,2-bis(diphenylphosphino)ethane}iodoniobium 以 甲苯 为溶剂， 以0%的产率得到
  参考文献：
  名称：

  用取代的5族金属羰基进行电子转移过程。Ag 3 M 3（CO）12（Me 2 PCH 2 CH 2 PMe 2）3的合成，晶体和分子结构，M = Nb，Ta，铌（0）和钽（0）的第一个结构特征羰基衍生物

  摘要：

  钽（I）的一些新的四羰衍生物，TAI（CO）4 LL（LL = TMEDA，DPPM，2,2'-枇），已经通过二碘氧化得到[TA（CO）6 ] -在存在二齿配体。

  DOI：

  10.1016/0022-328x(90)85121-e
• 作为产物：
  描述：

  sodium hexacarbonylniobate*THF 在 C₂H₄(P(C₆H₅)2)2 、 I₂ 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 以43%的产率得到tetracarbonyl{1,2-bis(diphenylphosphino)ethane}iodoniobium
  参考文献：
  名称：

  5族金属六羰基衍生物的合成和电子转移过程。四羰基[1,2-双（二苯基膦基）乙烷]碘钽的晶体和分子结构

  摘要：

  DOI：

  10.1021/om00095a011

文献信息

• New alkyne complexes of niobium(I)
  作者：Fausto Calderazzo、Christian Felten、Guido Pampaloni、Dieter Rehder

  DOI：10.1039/dt9920002003

  日期：——

  The reaction between the seven-co-ordinated niobium(I) complexes [NbX(CO)4(dppe)](dppe = Ph2PCH2CH2PPh2, X = Br or I) or [NbX(CO)3(PEt3)3](X = Cl, Br or I) and alkynes leads to the d4 niobium alkyne complexes [NbX(CO)2(η2-RCCR)(dppe)](R = Ph) and [NbX(CO)2(η2-RCCR)(PEt3)2](R = H, Me, Et or Ph). These complexes have been characterized by 1H, 13C, 31P and 93Nb NMR and IR spectroscopies. Low-field acetylenic

  七配位的铌（I）配合物[NbX（CO）4（DPPE）]（DPPE = Ph 2 PCH 2 CH 2 PPh 2，X = Br或I）或[NbX（CO）3（ PET 3）3 ]（X = Cl，Br或I）和炔通向d 4铌炔配合物[NBX（CO）2（η 2 -RCCR）（DPPE）]（R = PH）和[NBX（CO ）2（η 2 -RCCR）（PET 3）2 ]（R = H，ME等或PH）。这些配合物的特征是1 H，13 C，31P和93 Nb NMR和IR光谱。低场炔属质子和碳共振证实了炔烃作为四电子供体的描述。的93个Nb的NMR共振表现出预期的屏蔽上的配体的卤化物的性质的依赖性，即氯<溴
• Isocyanide–Group 5 complexes and metal-centred C–C coupling
  作者：Dieter Rehder、Christian Böttcher、César Collazo、Ronald Hedelt、Hauke Schmidt

  DOI：10.1016/s0022-328x(99)00240-5

  日期：1999.8

  The Nb-I complexes [XNb(CO)(2)(CNR)(4)] (X = I, Br; R = tBu, cHex, 2,6-Me2C6H3) (4) have been identified as intermediates in the system [Nb(CO)(6)](-)/CNR/X-2, which generates the Nb-III complexes [I2Nb(CNR)(6)]I (1) and [X3Nb(CNR)(3)] (2) or, on addition of tolane, [I2Nb(CNtBu)(3)tolane]I (3). In the presence of small amounts of water, the aminoalkyne-Nb-III complexes [X2Nb(CNR)(4)RHNC=CNHR]X (R = tBu; X = I: 5a, X = Br: 5b) are formed. The complex 4a (X = I, R = tBu) converts to 5a in the presence of water, suggesting successive protonation and intramolecular reductive isocyanide coupling mediated by the Nb-I centre. The V-I complexes [XV(CO)(2)(CNR)(2)dppe] (X = I, R = tBu, cHex; X = Br, R = tBu) (6) and the V-III complex [I2V(CNtBu)(6)]I (7) have been obtained from the system [V(CO)(6)](-)/CNR/X-2 in dry THF, while the coupling product [I2V(CNtBu)(4)tBuHNC=CNHtBu]I (8) is recovered as water is added. In contrast to the Nb system, V-II complexes of composition [I2V(CNR)(4)] (9) and [I2V(CNtBu)(2)(PR3)(2)] (10) can also be synthesised. The complex 10b (PR3 = PPhMe2) has also been prepared from cis-[V(CO)(4)(PPhMe2)(2)](-) (11). The system [Ta(CO)(6)](-)/CNtBu/I-2 yielded the complexes [ITa(CO)(3)(CNtBu)(3)] (13a), [ITa(CO)(3)(CNtBu)dppe] (13b) and [I2Ta(CNtBu)(6)]I (14). The chloro-isocyanide complexes [Cl2V(CCPh)(CNtBu)(2)] (12) and [Cl2Ta(CNcHex)(4)] (15) have been generated from the metal chlorides as starting products. [INb(CO)(2)(CNtBu)(4)]. 2toluene (4a.2toluene), trans-[I2VCN(2,6-Me2C6H3}(4)] (9a) and cis-[Et4N][V(CO)(4)(PPhMe2)(2)] ([Et4N]-11) have been characterised by single-crystal X-ray diffraction. (C) 1999 Elsevier Science S.A. All rights reserved.