| Publication Type |
Journal Article |
| Title |
Syntheses and properties of hydride-cyanamide and derived hydrogen-cyanamide complexes of molybdenum(IV). Crystal structure of [MoH2(NCNH2)2(Ph2PCH2CH2PPh2)(2)][BF4](2) |
| Authors |
L.M.D.R.S. Martins Elisabete C.B.A. Alegria DL Hughes J.J.R. Fraústo da Silva Armando J.L. Pombeiro |
| Groups |
|
| Journal |
DALTON TRANSACTIONS |
| Year |
2003 |
| Month |
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|
| Volume |
|
| Number |
19 |
| Pages |
3743-3750 |
| Abstract |
The first hydride-cyanamide (or -cyanoguanidine) complexes of molybdenum, [MoH2(NCR)(2)(dppe)(2)][BF4](2) (R = NH2 1a, NMe2 1b, NEt2 1c or NC(NH2)(2) 1d; dppe = Ph2PCH2CH2PPh2), have been prepared by treatment of [MoH4(dppe)(2)] in THF with the appropriate cyanamide (or cyanoguanidine) in the presence of HBF4. Reaction of 1a with a base leads to the bis(hydrogen-cyanamide) [or bis( hydrogen-cyananoimide)] complex trans-[Mo(NCNH)(2)(dppe)(2)][BF4](2) 2 or to the bis(cyanoimide) complex trans-[Mo(NCN)(2)(dppe)(2)] 3, via base-catalysed or base-promoted dehydrogenation, whereas cathodically-induced dehydrogenation appears to form [MoH2(NCNH)(NCNH2)(dppe)(2)](+4). The spectroscopic properties of the complexes are also reported along with their electrochemical behaviours and the molecular structure of 1a as established by X-ray crystallography which indicates the presence of the NCNH2 ligands involved in two hydrogen bonds connecting the ions in dimeric units. |
| DOI |
http://dx.doi.org/10.1039/b306368b |
| ISBN |
|
| Publisher |
ROYAL SOC CHEMISTRY |
| Book Title |
|
| ISSN |
1477-9226 |
| EISSN |
|
| Conference Name |
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| Bibtex ID |
ISI:000185547100017 |
| Observations |
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