Electrospray mass spectrometry of borane salts: The electrospray needle as an electrochemical cell

✍ Scribed by Cornelis E.C.A. Hop; Dovas A. Saulys; Donald F. Gaines

• Book ID: 103996818
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 422 KB
• Volume: 6
• Category: Article
• ISSN: 1044-0305
• DOI: 10.1016/1044-0305(95)00478-v

✦ Synopsis

Two borane salts ([(Me)4N][B3Hs] and Cs[B3H8]) were examined by electrospray mass spectrometry in the positive ion mode. Acetonitrile solutions provided the most informative spectra; the salts exhibited a remarkable degree of clustering under electrospray conditions, and virtually all signals corresponded to cationic cluster ions of the general formula {[cationm+ ]~[anion"-]y} (mx-''y)+. In contrast, methanol solutions of these salts produced only B(OCH3) ~-cluster ions under otherwise identical conditions. B NMR analyses corroborate the identities of the methanol solution species that enter the electrospray source and the reaction product generated during the electrospray process. (