نتایج جستجو برای: bidentate ligand

تعداد نتایج: 109079  

2009
Marietjie Schutte Hendrik G. Visser Alice Brink

In the title compound, [ReBr(C(27)H(27)NP(2))(CO)(3)], the Re(I) atom is octa-hedrally surrounded by three carbonyl ligands in a facial arrangement, a bromide ligand and the P,P'-bidentate ligand Bis(diphenyl-phosphino)propyl-amine. The compound exhibits substitutional disorder of the bromide ligand and the axial carbonyl ligand, with almost 50% occupancy for both Br amd CO [0.538 (4) and 0.462...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003
Yung-Chan Lin Tian-Huey Lu Fen-Ling Liao Chung-Sun Chung

The crystal structure of the title compound, [Ni(C8H20N4)(C12H8N2)](ClO4)2, has been determined by X-ray diffraction. The Ni(II) ion is six coordinated with four nitrogen atoms of the tetradentate macrocyclic ligand and two nitrogen atoms of the bidentate ligand in a distorted octahedron geometry. The folded tetradentate macrocyclic ligand adopts a configuration having four five-membered chelat...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2010

2009
Roya Ahmadi Khadijeh Kalateh Robabeh Alizadeh Zeinab Khoshtarkib Vahid Amani

In the tetranuclear centrosymmetric title compound, [Pb(4)(NO(3))(8)(C(11)H(10)N(2))(4)], irregular PbN(2)O(5) and PbN(2)O(4) coordination polyhedra occur. The hepta-coordinated lead(II) ion is bonded to two bidentate and one monodentate nitrate ion and one bidentate 6-methyl-2,2'-bipyridine (mbpy) ligand. The six-coordinate lead(II) ion is bonded to one bidentate and two monodentate nitrate an...

Journal: :Synthesis 2022

Abstract A new solvent/ligand-controlled switchable C–H arylation of 1-methyl-4-nitro-1H-indazole catalyzed by Pd(OAc)2 was achieved. bidentate ligand in DMA promoted the activation at C7 position, while a phosphine H2O oriented C3 position. The and products were obtained moderate to good yields with high regioselectivity.

Journal: :Chemical communications 2005
Stephen P Jeffery Jonghyuk Lee Marcetta Y Darensbourg

For the first time, a NiN2S2 metallothiolate ligand is used as a bidentate bridging ligand for a multiply bonded dimetal unit.

2008
Seong Huh Alan J. Lough

In the title compound, [FeRu(C(17)H(14)P)(2)(C(6)H(8)BN(4))H(CO)]·C(3)H(6)O, the Ru(II) ion is coordinated in a distorted octa-hedral environment involving a hydride ligand, a carbonyl ligand and two bidentate ligands. Of the two bidentate ligands, the bulky 1,1'-bis-(diphenyl-phosphino)ferrocene (dppf) ligand chelates with a larger bite angle of 101.90 (2)°, whereas the bite angle of the [H(2)...

2009
Gertruida J. S. Venter Gideon Steyl Andreas Roodt

In the title compound, [Rh(C(13)H(16)NO)(C(18)H(15)P)(CO)], the coordination geometry of the Rh(I) atom is square-planar, formed by the coordinating N and O atoms of the bidentate enaminoketonate ligand, one C atom from the carbonyl group and a P atom from triphenyl-phosphine. The complex displays a 0.591 (3):0.409 (3) ratio disorder of the phenyl unit of the monoanionic N,O-bidentate ligand. I...

2009
Tuncer Hökelek Hakan Dal Barış Tercan Özgür Aybirdi Hacali Necefoğlu

The title Co(II) complex, [Co(C(9)H(10)NO(2))(2)(C(6)H(6)N(2)O)(H(2)O)(2)], contains two 4-dimethyl-amino-benzoate (DMAB) anions, one isonicotinamide (INA) ligand and two coordinated water mol-ecules. One of the DMAB anions acts as a bidentate ligand, while the other is monodentate. The four O atoms in the equatorial plane around the Co atom form a highly distorted square-planar arrangement, wh...

2013
Santosh K. Agrawal Renu Sharma Meena Nagar

The mixed ligand complexes of Cr, Mn, Fe, Co, Zn, Cd and Hg with cis-3,7-dimethyl-2,6octadienethiosemicarbazone (CDOTSC) and amino acid L-alanine were synthesized and characterized. The free ligand and its metal complexes have been tested in vitro against microorganism in order to assess their metal complexes properties. The analytical data, magnetic susceptibility, and spectral analysis agree ...

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