New β Cis Folded Organocobalt Derivatives with a Salen-Type Ligand

Inorganic Chemistry

Volumn 42, Issue 21, 2003, Pages 6805-6811

  Dreos, Renata ^a   Nardin, Giorgio ^a   Randaccio, Lucio ^a   Siega, Patrizia ^a   Tauzher, Giovanni ^a   Vrdoljak, Višnia ^a,b  

^a UNIVERSITY OF TRIESTE   (Italy)

^b UNIVERSITY OF ZAGREB   (Croatia)

Author keywords

[No Author keywords available]

Indexed keywords

COBALT DERIVATIVE; LIGAND; ORGANOCOBALT DERIVATIVE; SALICYLALDIMINATE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL REACTION; COMPLEX FORMATION; CYCLIZATION; ELECTRON; GEOMETRY; LIGAND BINDING; METAL BINDING; OXIDATION; QUANTITATIVE ANALYSIS; REACTION ANALYSIS; REDUCTION;

EID: 0142103808     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic034085r     Document Type: Article

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30. The peaks corresponding to dimeric species in the ESI-MS spectrum at 60 V in methanol are likely due to species generated in the source during the ionization process. The formation of polynuclear aggregates during the electrospray ionization process is well recognized in applications of ESI-MS in organometallic chemistry. (For instance: Henderson, W.; Nicholson, B. K.; McCaffrey, L. J. Polyhedron 1998, 17, 4291.) Several examples of polynuclear aggregates generated in situ have been reported. (For some relevant examples: Chipperfield, J. R.; Clayton, J.; Khan, S. A.; Woodward, S. J. Chem. Soc., Dalton Trans. 2000, 1087. Dinger, M. B.; Henderson, W.; J. Organomet. Chem. 1998, 560, 233. Cardwell, T. J.; Colton, R.; Mitchell, S.; Traeger, J. C. Inorg. Chim. Acta 1994, 216. 75.) This hypothesis is supported by the dependence of the peaks intensity on the ESI MS conditions, the intensity of the peaks corresponding to dimeric species decreasing at higher cone voltages.
31. The peaks corresponding to dimeric species in the ESI-MS spectrum at 60 V in methanol are likely due to species generated in the source during the ionization process. The formation of polynuclear aggregates during the electrospray ionization process is well recognized in applications of ESI-MS in organometallic chemistry. (For instance: Henderson, W.; Nicholson, B. K.; McCaffrey, L. J. Polyhedron 1998, 17, 4291.) Several examples of polynuclear aggregates generated in situ have been reported. (For some relevant examples: Chipperfield, J. R.; Clayton, J.; Khan, S. A.; Woodward, S. J. Chem. Soc., Dalton Trans. 2000, 1087. Dinger, M. B.; Henderson, W.; J. Organomet. Chem. 1998, 560, 233. Cardwell, T. J.; Colton, R.; Mitchell, S.; Traeger, J. C. Inorg. Chim. Acta 1994, 216. 75.) This hypothesis is supported by the dependence of the peaks intensity on the ESI MS conditions, the intensity of the peaks corresponding to dimeric species decreasing at higher cone voltages.
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