TY - JOUR
T1 - Electron paramagnetic resonance study of the reactions of tetrathiomolybdate with roussin salts and esters, and with some related iron nitrosyls
AU - Butler, Anthony R.
AU - Glidewell, Christopher
AU - Johnson, Ian L.
AU - Walton, John C.
PY - 1987/1/1
Y1 - 1987/1/1
N2 - The tetrathiomolybdate ion [MoS4]2- reacts in DMF solution with Roussin esters Fe2(SR)2(NO)4 (R = Me, Et, n-Pr, i-Pr, n-Bu,t-Bu, n-C5H11) to yield the paramagnetic iron nitrosyls [Fe(NO)2(SR)2]- (1), [Fe(NO)2(S2MoS2]- (2) and [Fe(NO)(S2MOS2)2]- (3). The new complexes (2) and (3) have been characterized by EPR spectroscopy and the assignment to them of constitutions based respectively upon tetrahedral and square pyramidal iron is supported by EHMO calculations. Fe2(SPh)2(NO)4 with [MoS4]2- yields only [Fe(NO)2(SPh)2]-, and preformed (3) reacts with PhS- to give firstly EPR-silent species, and then [Fe(NO)2(SPh)2]-. The mononitrosyl (3) can also be formed by reaction of [MoS4]2- with [Fe4S3(NO)7]-, Fe4S4(NO)4, or Fe2I2(NO)4.
AB - The tetrathiomolybdate ion [MoS4]2- reacts in DMF solution with Roussin esters Fe2(SR)2(NO)4 (R = Me, Et, n-Pr, i-Pr, n-Bu,t-Bu, n-C5H11) to yield the paramagnetic iron nitrosyls [Fe(NO)2(SR)2]- (1), [Fe(NO)2(S2MoS2]- (2) and [Fe(NO)(S2MOS2)2]- (3). The new complexes (2) and (3) have been characterized by EPR spectroscopy and the assignment to them of constitutions based respectively upon tetrahedral and square pyramidal iron is supported by EHMO calculations. Fe2(SPh)2(NO)4 with [MoS4]2- yields only [Fe(NO)2(SPh)2]-, and preformed (3) reacts with PhS- to give firstly EPR-silent species, and then [Fe(NO)2(SPh)2]-. The mononitrosyl (3) can also be formed by reaction of [MoS4]2- with [Fe4S3(NO)7]-, Fe4S4(NO)4, or Fe2I2(NO)4.
UR - http://www.scopus.com/inward/record.url?scp=4444283986&partnerID=8YFLogxK
U2 - 10.1016/S0277-5387(00)84268-0
DO - 10.1016/S0277-5387(00)84268-0
M3 - Article
AN - SCOPUS:4444283986
SN - 0277-5387
VL - 6
SP - 2085
EP - 2090
JO - Polyhedron
JF - Polyhedron
IS - 12
ER -