Syntheses of metal complexes of lower boranes and its development to metal cluster compounds.

1. B_2 H_4·2 P（CH_3）_3 has been known to coordinate to a metal through two vicinal hydrogen atoms。However，中央金属只有那些带有d^<10>电子配置的金属。如果要将金属离子与电子配置相协调，它可以比D^<10>更好，我们已经尝试将B_2H_4.2P（CH_3）_3复合体合成为第6组过渡金属碳的光化学反应。Both [M（CO）_4{B_2 H_4·2 P（CH_3）_3}] and [M（CO）_5{B_2 H_4·2 P（CH_3）_3} （M=Cr， Mo， W） were prepared。B_2H_4·2P（CH_3）_3 acts as a bidentate ligand in the former complexes， but as a unidentate in the latter complexes。在B_2H_4.2P（CH_3）_3行为作为唯一配体的第一个示例，但也是第一个作为唯一配体的多边形行为作为唯一配体的多边形行为。解决方案中复杂性的动态行为是采用核磁共振方法的。用一种新的单胞菌这样的BH_4^-，已经准备好了，没有复合体。 ... More Tral Monoborane被协调了，但仍有报道。第6组过渡金属碳基的光化学反应被用于具有中性单溴-刘易斯基添加和复合物的复合物的合成物， [M（CO）_5（BH_3·L）] （M=Cr， Mo， W ; L=PMe_3.）。PPH_3，NMe_3） were prepared， and revealed to be unidentate complexes. 3。As [Cu{B_2H_4·2P（CH_3）_3}_2]X where Cu （I） was coordinated tetrahedrally by only four hydrogen atoms was synthesized， we investigated to synthesize mixed borane complexes in which Cu （I） is coordinated with only hydrogen atoms. Cu（B_3 H_8）{B_2 H_4·2 P（CH_3）_3} was synthesized. 4。它被揭示了Wade规则的作用，以预测集群化合物的结构也是适用的，因为金属复合物在这个项目中出现。这些电子-精确的borane复合体在我们的项目中也可以被描述为metallaboranes。Unidentate B_2 H_4·2 P（CH_3）_3 complexes can be regarded model compounds for the parent borane which has not been synthesized yet。Less（低）

1. B_2H_4・2P(CH_3)_3 has been known to coordinate to a metal through two vicinal hydrogen atoms. However, the central metal ions are only those with d^<10> electron configuration. To elucidate if it can be coordinated to a metal ion with an electron configuration other than d^<10>, we tried to synthesize B_2H_4・2P(CH_3)_3 complexes using photochemical reactions of group 6 transition metal carbonyls. Both [M(CO)_4{B_2H_4・2P(CH_3)_3}] and [M(CO)_5{B_2H_4・2P(CH_3)_3} (M=Cr, Mo, W) were prepared. B_2H_4・2P(CH_3)_3 acts as a bidentate ligand in the former complexes, but as a unidentate in the latter complexes. The latter complexes are not only the first examples in which B_2H_4・2P(CH_3)_3 acts as a unidentate ligand, but also the first ones in which polyborane acts as a unidentate ligand. Dynamic behavior of the complexes in solutions was elucidated using NMR method.2. Although many coordination complexes with anionic monoboranes such as BH_4^-, have been prepared, no complexes in which neu … More tral monoborane is coordinated has been reported yet. Photochemical reaction of group 6 transition metal carbonyls was used for the syntheses of the complexes with neutral monoborane-Lewis base adducts, and complexes, [M(CO)_5(BH_3・L)] (M=Cr, Mo, W ; L=PMe_3. PPh_3, NMe_3) were prepared, and revealed to be unidentate complexes.3. As [Cu{B_2H_4・2P(CH_3)_3}_2]X where Cu (I) was coordinated tetrahedrally by only four hydrogen atoms was synthesized, we investigated to synthesize mixed borane complexes in which Cu (I) is coordinated with only hydrogen atoms. Cu(B_3H_8){B_2H_4・2P(CH_3)_3} was synthesized.4. It was revealed that Wade rule which is effective to predict the structures of cluster compounds is also applicable to the metal complexes obtained in this project. Thus electron-precise borane complexes obtained in our project can also be described as metallaboranes. Unidentate B_2H_4・2P(CH_3)_3 complexes can be regarded model compounds for the parent borane which has not been synthesized yet. Less