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Mass spectra of organometallic compounds–XI: Pyrrolyl, indenyl and fluorenyl derivatives of manganese carbonyl
Author(s) -
King R. B.,
Efraty A.
Publication year - 1970
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210031002
Subject(s) - chemistry , manganese , mass spectrum , antimony , medicinal chemistry , ion , ring (chemistry) , ligand (biochemistry) , organometallic chemistry , metal , metal carbonyl , stereochemistry , inorganic chemistry , crystallography , crystal structure , organic chemistry , biochemistry , receptor
The positive ion mass spectra of the π‐pyrrolyl derivatives C 4 H 4 NMn(CO) 2 L (L = (C 6 H 5 ) 3 E or CO; E = P, As, or Sb), the π‐indenyl derivatives C 9 H 7 Mn(CO) 2 L (L = (C 6 H 5 ) 3 E or CO; E = P, As, or Sb) and the π‐fluorenyl derivatives C 13 H 9 Mn(CO) 2 L (L = (C 6 H 5 ) 3 P or CO) have been investigated. The relative tendencies of ions of the type [QMnE(C 6 H 5 ) 3 ] + (Q = π‐pyrrolyl, π‐indenyl, or π‐fluorenyl; E = P, As, or Sb) to fragment by losses of the Q ring system and the (C 6 H 5 ) 3 E ligand are compared. Phenyl transfers from phosphorus, arsenic, or antimony to manganese to form relatively high abundances of [C 6 H 5 Mn] + are also observed. Other processes typical of metal carbonyl derivatives (CO losses), aromatic derivatives (C 2 H 2 eliminations) and (C 6 H 5 ) 3 E derivatives (phenyl losses, conversion of [(C 6 H 5 ) 3 E] + directly to [C 6 H 5 E] + , and formation of [C 12 H 8 E] + 9‐heterofluorenyl ions) are observed in these mass spectra and are supported in many cases by the presence of appropriate metastable ions.