The title compound, [CoH(C(18)H(15)P)(2)(C(2)H(6)OS)(2)], was synthesized by the reaction of chloridotris(triphenyl-phosphane)cobalt(I), [ClCo(PPh(3))(3)], in the presence of one equivalent potassium hydridotris(pyrazol-yl)borate in dimethyl sulfoxide. The structure displays a distorted trigonal-pyramidally coordinated cobalt(I) atom, with two phosphane ligands and one DMSO ligand in the equato...

In the title dinuclear compound, [V(2)(C(15)H(17)N(2)O)(2)O(4)], each V(V) atom is six-coordinated by one oxide group, and by two N and one O atom of the tridentate Schiff base ligand, and bridged by two additional oxide O atoms, resulting in a centrosymmetric dimer. The metal centre has a distorted octa-hedral coordination with the monoanionic Schiff base ligand occupying one equatorial and tw...

In the title mononuclear complex, [Sn(CH(3))(3)(C(7)H(5)N(2)O(6))(C(2)H(6)OS)], the Sn(IV) ion is coordinated by three methyl groups in the equatorial plane, and by an O atom from a 2-methyl-3,5-dinitrobenzoate ligand and a dimethyl sulfoxide ligand in the axial sites, to form a slightly distorted trigonal-bipyramidal environment. The O atoms of one of the nitro groups are disordered over two s...

The title compound, [Fe(C(2)H(5)O)(C(36)H(44)N(4))], contains a five-coordinate iron-porphyrin complex with an axial eth-oxy ligand. The iron(III) atom is displaced by 0.504 (2) Å towards the eth-oxy ligand from the 24-atom mean plane of the porphyrin. The average Fe-N(p) distance is 2.078 (2) Å and the Fe-O distance is 1.8232 (18) Å. The eth-oxy C atoms are disordered in a 0.581 (12):0.419 (12...

The title compound, [Mn(C48H36N4)(N)], is a manganese(V) complex with the transition metal in a square-pyramidal coordination geometry and a nitride as the axial ligand. The complex resides on a crystallographic inversion center and only one half of it is symmetry independent. The Mn(V) atom and the nitride N atom are equally disordered across the inversion center. The Mn N distance is 1.516 (4...

an octahedral cobalt(iii) complex, trans-[(me2bpb)co(bzlan)2]clo4 (1), with h2me2bpb = n,n’-(4,5-dimethyl-1,2-phenylene)dipicolinamide and bzlan = benzylamine, has been synthesized and characterized by elemental analyses, ir, uv-vis, and 1h nmr spectroscopy. the structure of this complex has been determined by x-ray crystallography. the me2bpb2– is a di-anionic tetradentate ligand furnishing a ...

Abstract The Dy III complex of the nonadentate bispidine L 1 (bispidine=3,7‐diazabicyclo[3.3.1]nonane) has a capped square antiprismatic structure, known to lead suppressed quantum relaxation magnetization by tunneling. [Dy ]OTf indeed is an SMM with modest barrier relaxation. experimentally determined 46 cm −1 confirmed ab initio calculations (43.5 ), and quantum‐chemical analysis indicates th...

We have developed and employed multiple amino acid-specific isotopic labeling schemes to obtain definitive assignments for active site 1H NMR resonances of iron(II)- and iron(III)-superoxide dismutase (Fe(II)SOD and Fe(III)SOD) from Escherichia coli. Despite the severe relaxivity of high-spin Fe(III), we have been able to assign resonances to ligand His' delta1 protons near 100 ppm, and beta an...