(ベンゼン)トリカルボニルクロム(0) 化学特性,用途語,生産方法
外観
淡黄色~黄色、結晶~結晶性粉末
用途
有機合成試薬。
特徴
結晶学的分子対称Cs,ベンゼン環の対称はC3v,Cr-C(CO) 184.2 pm,Cr-C(C6H6) 222.0~224.0 pm,C-C 140.3,142.1,140.4,142.1,140.3,141.8 pmで結合交代を示す(78 K,中性子回折)
化学的特性
yellow crystalline powder
使用
Catalyst for:
- Oxidation of alkenes
- Hydrogenation of alkynes
純化方法
Purify the complex by sublimation in vacuo. A possible impurity is 2-picoline which can be removed by washing with pentane and drying. It is then purified further by sublimation at 80-85o/10-3mm, or by recrystallisation from Et2O to give yellow crystals. 1H NMR in CDCl3 should give a single peak at 4.68. [Rausch J Org Chem 39 1787 1974, Pauson in Houben-Weyl Meth Org Chem V, E 18 Pt I p226 Theme Verlag, Stuttgart 1986, Beilstein 5 IV 625.]
参考文献
B. Rees, P. Coppens, Acta Crystallogr., Sect. B, 29, 2515 (1973), DOI: 10.1107/S0567740873006941.
(ベンゼン)トリカルボニルクロム(0) 上流と下流の製品情報
原材料
準備製品