TY - JOUR
T1 - Structural characterization of [(μ-H)Os3(CO) 10(μ-NH2)] and a new polymorphic form of [(μ-H)Os3(CO)10(μ-SH)]. Influence of the bridging group on the geometry of compounds [(μ-H)Os3(CO) 10(μ-X)] (X = NH2, NRH, PRH, SbR2, OH, SH, SR, SeR, Cl, Br).
AU - Reyes-López, Ottmar R.
AU - Leyva, Marco A.
AU - Rosales-Hoz, María J.
N1 - Funding Information:
We wish to thank the Consejo Superior de Investigaciones Científicas de España for the award of a license of the Cambridge Crystallographic Data base. O.R.L. wishes to thank Conacyt for financial support.
PY - 2011/1/31
Y1 - 2011/1/31
N2 - Compounds [(μ-H)Os3(CO)10(μ-NH2)] and a new polymorphic form of [(μ-H)Os3(CO)10(μ-SH)] were obtained from the reaction of [H2Os3(CO) 10] with 1,3,5-N,N,N,-trimethyl-triazinane and 1,3,5-trithiane respectively. The structures show the same geometry described for other doubly bridged triangular clusters. A comparison of these type of compounds show that the bridging group does not affect significantly the dihedral angle between Os3 and Os2X planes (X = NH2, NRH, PRH, SbR2, OH, OR, SH, SR, SeR, Cl and Br). The presence of a hydrogen atom on the bridge could favor a possible interaction between groups so the crystal packing is analyzed. Since intermolecular interactions could also be occurring in solution, reactions of [(μ-H)Os3(CO) 10(μ-OH)] and [(μ-H)Os3(CO)10(μ-SH)] with proton sponge were carried out in order to determine if the OH or SH protons had acidic character and could react with a base. These results and other structural characteristics will be discussed.
AB - Compounds [(μ-H)Os3(CO)10(μ-NH2)] and a new polymorphic form of [(μ-H)Os3(CO)10(μ-SH)] were obtained from the reaction of [H2Os3(CO) 10] with 1,3,5-N,N,N,-trimethyl-triazinane and 1,3,5-trithiane respectively. The structures show the same geometry described for other doubly bridged triangular clusters. A comparison of these type of compounds show that the bridging group does not affect significantly the dihedral angle between Os3 and Os2X planes (X = NH2, NRH, PRH, SbR2, OH, OR, SH, SR, SeR, Cl and Br). The presence of a hydrogen atom on the bridge could favor a possible interaction between groups so the crystal packing is analyzed. Since intermolecular interactions could also be occurring in solution, reactions of [(μ-H)Os3(CO) 10(μ-OH)] and [(μ-H)Os3(CO)10(μ-SH)] with proton sponge were carried out in order to determine if the OH or SH protons had acidic character and could react with a base. These results and other structural characteristics will be discussed.
KW - Amido ligands
KW - Butterfly geometry
KW - Hydrosulphide ligand
KW - Osmium clusters
KW - Structural characterization
UR - http://www.scopus.com/inward/record.url?scp=78650682544&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2010.10.033
DO - 10.1016/j.molstruc.2010.10.033
M3 - Artículo
AN - SCOPUS:78650682544
SN - 0022-2860
VL - 985
SP - 134
EP - 138
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
IS - 2-3
ER -