Electrospray mass spectrometric studies of some heterometal anionic carbonyl clusters

• Published in: Journal of organometallic chemistry Vol. 515; no. 1; pp. 205 - 211
• Main Authors: Ferrer, Montserrat, Reina, Roser, Rossell, Oriol, Seco, Miquel, Segalés, Glòria
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 31-05-1996
• Subjects: Carbonyl clusters; Electrospray mass spectroscopy; Metal-metal bonds; Metal-metal bonds; Electrospray mass spectroscopy; Carbonyl clusters
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/0022-328X(95)06055-2

Electrospray mass spectra (ESMS) are reported for a series of anionic transition-metal clusters of the type (PPh
4)[Fe
3(CO)
10(μ-CO){μ-Hg(m)}] (m = Mo(CO)
3Cp; Co(CO)
4; Fe(CO)
2Cp; W(CO)
3Cp; Mn(CO)
5) and also for the species of higher nuclearity (NEt
4)[Fe
6C(CO)
16AuPPh
3] in methanol solution. The results were compared with those obtained by FAB-MS, and they indicate that ESMS is the most appropriate technique by which to obtain control fragmentation. Information about the strength of the different metal-metal bonds present in the cluster can be deduced from the species generated.