1)Detemine whether the following complexes obey the 18-electron rule.
(a)[Pd(Et)(Cl)(PPh₃)2]
(b)[Fe(n³-allyl)(CO)₃Cl]
(c)[Rh(Cl)(H)2(n²-C₂H4)(PMe3)2]
(d)[Cr(n⁶-C₆ H₆)(n⁶-C₇ H₈)]
2)A complex has an empirical formula of Re(CO)₃CI.Propose how this complex could obey the 18-electron rule without requiring any additional ligands.(Note: Include in your answer a reasonable depiction of the complex you come up with along with an electron count of the complex showing that it obeys the 18-electron rule.)
3)Provide a plausible reason for the difference in IR C-O stretching frequencies between the following pair of complexes.
fac-[Mo(PF3)3(CO)3] 2040, 1991 cm-1
fac-[Mo(PMe3)3(CO)3] 1945, 1851 cm-1
4)Suggest the most plausible product for each of the following reactions.Explain your reasoning:
(a)Re₂(CO)10 with Na
(b)Ni(CO)4 with excess PPh₃(done with heating)
5)The compound [Ni₃(C₅H₅)₃(CO)2]has a single C-0 stretching frequency at 1761 cm¹ .
The IR data indicates that all C₅ Hs ligands are pentahapto and are in identical environments.
(a)On the basis of the data,propose a structure.Provide a justification for your structure.
(b)Determine whether the metal centers in your structure obey the 18-electron rule.
版权所有:编程辅导网 2021 All Rights Reserved 联系方式:QQ:99515681 微信:codinghelp 电子信箱:99515681@qq.com
免责声明:本站部分内容从网络整理而来,只供参考!如有版权问题可联系本站删除。