Polyhedron p. 3161 - 3167 (2007)
Update date:2022-08-04
Topics:
Gibson, Vernon C.
Redshaw, Carl
Clegg, William
Elsegood, Mark R.J.
The five-coordinate mixed-imido complex [Mo(Nt-Bu)(NC6F5)(L)] (1) can be prepared in high yield via treatment of [Mo(Nt-Bu)(NC6F5)(Ot-Bu)2] with LH2, where LH2 is 2,6-bis(2-hydroxy-2,2-diphenylethyl)pyridine. Contrastingly, the reaction of [Mo(NAd)(NC6F5)(Ot-Bu)2] (Ad = adamantyl, C6H10) with LH2 gave [Mo(NAd)2(L)] (2) via an imido-exchange reaction. Complex 2 can also be synthesised via treatment of in situ generated [Mo(NAd)2(Ot-Bu)2] with LH2; the latter method also results in trace amounts of the five-coordinate complex [MoCl(NAd)2(Ldehyd)] (3) (Ldehyd = 2-(2-hydroxy-2,2-diphenylethenyl)pyridine). The structures of 1-3 have been determined by X-ray crystallographic study. In each complex, the geometry at the metal is distorted trigonal bipyramidal with the pyridinediolate ligand adopting an 'aea' bonding arrangement in 1 and an 'eee' arrangement in 2. The angle associated with the imido moiety also varies, with the greatest deviations found in 1 and 3, indeed, the pentafluoroimido ligand in 1 has one of the largest deviations from linearity for an M-N-C angle recorded to-date [135.98(16)°]. This has been rationalised on the basis of an electronic effect rather than intramolecular steric interactions or crystal packing forces.
View MoreShanghai Sungo Technology Chemical Co., Ltd
Contact:0086-21-51385579
Address:Room2010, F/20, Tonghua Plaza, NO 345 Jinxiang Road, Jinqiao Export Processing Zone, Shanghai, 201206 P.R.CHINA
Contact:+86-512-56795332
Address:No227 Shuanglong Rd, Fenghuang, Zhangjiagang
SHUNYUANSHENG BIO-PHARMTECH CO., LTD
website:https://www.whsysbio.com
Contact:--
Address:Building 13, Liandong U Valley-Wuhan Economic Innovation Valley, No. 259, Xingsan Road, Shamao Street, Hannan District, Wuhan City, Hubei Province
Shenzhen HwaGen Pharmaceutical Co., Ltd
website:http://www.rafflespt.com
Contact:+86-752-5538396
Address:Guangdong Huizhou China
Contact:86-510-82853889
Address:Rm.3732, No.18-2,Yonghe Rd.,Wuxi,Jiangsu,214023,China
Doi:10.1039/jr9620000113
(1962)Doi:10.1007/s10973-005-7379-z
(2006)Doi:10.1021/ol800785g
(2008)Doi:10.1021/jo0709091
(2007)Doi:10.1016/j.bmcl.2009.10.074
(2009)Doi:10.1016/j.jfluchem.2006.08.008
(2006)