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Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2

Nevenka Bresciani-Pahor ; Istituto di Chimica, Universita di Trieste, 34127 Trieste, Italy
John D. Orbell ; Istituto di Chimica, Universita di Trieste, 34127 Trieste, Italy
Lucio Randaccio ; Istituto di Chimica, Universita di Trieste, 34127 Trieste, Italy

Puni tekst: engleski, pdf (8 MB) str. 433-441 preuzimanja: 30* citiraj
APA 6th Edition
Bresciani-Pahor, N., Orbell, J.D. i Randaccio, L. (1984). Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2. Croatica Chemica Acta, 57 (4), 433-441. Preuzeto s https://hrcak.srce.hr/194113
MLA 8th Edition
Bresciani-Pahor, Nevenka, et al. "Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2." Croatica Chemica Acta, vol. 57, br. 4, 1984, str. 433-441. https://hrcak.srce.hr/194113. Citirano 05.04.2020.
Chicago 17th Edition
Bresciani-Pahor, Nevenka, John D. Orbell i Lucio Randaccio. "Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2." Croatica Chemica Acta 57, br. 4 (1984): 433-441. https://hrcak.srce.hr/194113
Harvard
Bresciani-Pahor, N., Orbell, J.D., i Randaccio, L. (1984). 'Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2', Croatica Chemica Acta, 57(4), str. 433-441. Preuzeto s: https://hrcak.srce.hr/194113 (Datum pristupa: 05.04.2020.)
Vancouver
Bresciani-Pahor N, Orbell JD, Randaccio L. Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2. Croatica Chemica Acta [Internet]. 1984 [pristupljeno 05.04.2020.];57(4):433-441. Dostupno na: https://hrcak.srce.hr/194113
IEEE
N. Bresciani-Pahor, J.D. Orbell i L. Randaccio, "Steric Influences in Octahedral Cohaloximes. The Crystal and Molecular Structure of trans-methylhis(dimethylglyoximato) (phosphite)cobalt(III) Complexs with Phosphite=P(OMe)2Ph and P(OMe)Ph2", Croatica Chemica Acta, vol.57, br. 4, str. 433-441, 1984. [Online]. Dostupno na: https://hrcak.srce.hr/194113. [Citirano: 05.04.2020.]

Sažetak
The crystal structures of the title compounds, (P(OMe)2Ph)Co(
DH)2Me (I) and (P(0Me)Ph2)Co(DH)2Me (II), are reported. Compound
I crystallizes in the orthorhombic system, space group Pbca,
with cell parameters a = 14.652(7), b = 26.45(1) and c = 11.330(6) A
and z = 8; compound II crystallizes in the monoclinic system, space
group P21 with cell parameters a = 9.423(7), b = 15.184(8), c = 8.948
(7) A and ~ = 100.50(9)0 , Z = 2. Both structures were solved by conventional
Patterson and Fourier methods and refined by the block
diagonal least-squares method to final R values of 0.033(1) and
0.034(II), using 2108 for I and 2063 for II independent reflections
with I > 30'(1). In both compounds the cobalt atom has a distorted
octahedral geometry, the two DH units occupying the equatorial
positions and Me and the P-ligand the axial ones. The Co-C and
Co- P bond lengths are 2.013(5) and 2.287(1) A in I and 2.019(6)
and 2.352(1) A in II, respectively. Linear correlation between Co-P
bond lengths and Tolman's cone angles in the series RaPCo(DH)2Me
is found, with the exception of the P(OMe)Ph2 derivative. Furthermore,
the linear relationship between the above Co-P distances
and those reported for analogous chloro-derivatives, already found
for phosphines, is valid for I but not for II.

Hrčak ID: 194113

URI
https://hrcak.srce.hr/194113

Posjeta: 63 *