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Electron‐impact studies of organometallic molecules—VIII: Some transition metal derivatives of polyfluorobenzenes
Author(s) -
Bruce M. I.,
Thomas Mair A.
Publication year - 1968
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.1210010608
Subject(s) - isomerization , chemistry , mass spectrum , electron ionization , molecule , transition metal , ion , metal , hexa , group 2 organometallic chemistry , crystallography , spectral line , ionization , stereochemistry , medicinal chemistry , organic chemistry , catalysis , physics , astronomy
The mass spectra of (π‐C 5 H 5 ) 2 Ti(C 6 F 5 )X (X Cl and C 6 F 5 ), C 6 F 5 Re(CO) 5 , R f Fe(CO) 2 (π‐C 5 H 5 ) (R f C 6 F 5 , 4‐HC 6 F 4 , and three isomeric H 2 C 6 F 3 ), and C 6 F 5 Ru(CO) 2 (π‐C 5 H 5 ) are compared to those of C 6 F 5 X (X F, Cl, Br, I) and the three isomers of C 6 F 4 H 2 . Significant differences occur, apparently depending on the relative thermodynamic stabilities of the various fragments which may be formed. Comparison of the mass spectra of pentafluorophenyl‐ and pentafluorobicyclo[2.2.0]hexa‐2,5‐dien‐2‐yl‐Re(CO) 5 show that similar ions are produced by both complexes, perhaps because of thermal isomerisation before ionisation.