39210-29-2Relevant academic research and scientific papers
Room temperature synthesis and crystal structure of mer-[MoBr 3Py3], the vibrational spectra of mer-[MoBr 3Py3], mer-[MoI3Py3] and trans,trans-[MoBr2Py4][MoBr4Py2]
Veryasov, Gleb,Goreshnik, Evgeny,Jesih, Adolf
, p. 939 - 942 (2013)
The reaction of MoBr3 and pyridine at room temperature provided single crystals of mer-[MoX3Py3]. mer-[MoBr 3Py3] crystallizes in P21/n monoclinic space group with cell dimensions a = 9.2297(5) A, b = 12.911(8) A, c = 15.7022(9) A and β = 90.479(3)°. There are four formula units in a unit cell. Mo-N distances are in the range 2.196(8)-2.214(8) A and Mo-Br distances are 2.573(1) A and 2.574(1) A. Fundamental vibrational frequencies of pyridine molecules are strongly affected upon coordination in all three coordination compounds: mer-[MoBr3Py3], mer-[MoI3Py3] and trans,trans-[MoBr2Py 4][MoBr4Py2]. Copyright
Synthesis of trans, trans-[MoX2py4][MoX4py2], trans-[MoX2py4]Br3, and structural identification of trans, trans-[MoX2py4][MoX4py2] (X = Cl, Br; py = pyridine)
Brencic,Golic,Leban,Rotar,Sieler
, p. 2124 - 2128 (2008/10/09)
Trans,trans-[MoX2py4][MoX4py 2](X = Cl, A; Br, B; py = pyridine, C5H 5N) are the side products of reaction of between (NH4)2[MoX5· H2O] (X = Cl,Br) with pyridine diluted with methanol. Both trans,trans- [MoX2py4][MoX4py2] are monoclinic, P21/n space group, with z = 2 and: a = 12.568(1), b = 9.430(1), c = 14.952(1) A and β = 100.81(1)° (A); a = 12.551(2), b = 9.533(2), c = 15.366(2) (A) and β = 99.35(1) (B). Cations and anions are located on the symmetry centers and have eclipsed conformation of the trans located pyridine ligands. Average Mo-X and Mo-N (pyridine) bonds are: (cation) 2.41, 2.21 A (A); 2.54, 2.21 A (B); (anion) 2.44, 2.20 A (A); 2.58, 2.20 A (B). Anionic part of the compounds can be oxidised by bromine to trans-MoX4py2, which precipitates from the solution. Cation can be isolated from the solution in the form of trans-[MoX2py4]Br3 (X = Cl, Br). The compounds were also characterised by chemical analysis, infrared spectroscopy and conductivity measurements. Johann Ambrosius Barth 1996.
