期刊
NEW JOURNAL OF CHEMISTRY
卷 36, 期 11, 页码 2280-2285出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nj40646b
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资金
- Department of Science and Technology India (DST) under SERC Fast Track Scheme [SR/FT/CS-74/2010]
- IIT Hyderabad
- UGC, India
We report the syntheses of N-(2,6-dimethylphenyI)-P,P-diphenylphosphinothioic amide Ph2P(S)NH-(2,6-Me2C6H3)] (2) and N-(2,6-dimethylphenyI)-P, P-diphenylphosphinoselenoic amide Ph2P(Se)NH-(2,6-Me2C6H3)] (3) by the reaction of N-(2,6-dimethylpheny1)-P,P-diphenylphosphinamine [Ph2PNH-(2,6-Me2C6H3)] (1) with elemental sulphur and selenium respectively. When the phosphinamine compound 1 was treated with n-BuLi and subsequently with zirconocenedichloride in an equimolar ratio, the corresponding zirconium complex [eta(5)-CP2ZrCl(eta(2)-N(2,6-Me2C6H3)PPh2}] (5) was obtained in good yield. The solid state structures of all the compounds were established by single crystal X-ray diffraction analysis. In zirconium complex 5, a highly strained three membered metallacycle was observed. In addition, the solid state structure of [Ph2P(O)NH(2,6-Me2C6H3)] (4) was also determined. In the solid state structure, compound 4 shows extensive intermolecular hydrogen bonding through oxygen atoms, whereas a lesser extent of intermolecular hydrogen bonding was noted in compound 2, due to the presence of the less electronegative sulphur atom.
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