Stabilization of zero-valent hydrazido complexes by phosphine ligands. Crystal structure of fac-(CO)3(DPPE)W:NNMe2, a nitrene analogue to Fischer carbenes

1992 ◽  
Vol 114 (18) ◽  
pp. 7041-7047 ◽  
Author(s):  
Bruce A. Arndtsen ◽  
Thomas K. Schoch ◽  
Lisa McElwee-White
Keyword(s):  
Crystal Structure ◽  
Phosphine Ligands ◽  
Fischer Carbenes

Polyfunctional phosphine ligands II. Iridium(I) complexes of the 7-diphenylphosphino-2,4-dimethyl-1,8-naphthyridine (dpnapy) ligand. X-ray crystal structure of [{Ir(cod)Cl}2(μ-dpnapy)]

1994 ◽  
Vol 216 (1-2) ◽  
pp. 209-216 ◽  
Author(s):  
Sandra Lo Schiavo ◽  
Maria Grassi ◽  
Giovanni De Munno ◽  
Francesco Nicolò ◽  
Giuseppe Tresoldi
Keyword(s):  
Crystal Structure ◽  
Phosphine Ligands ◽  
X Ray

Notizen: Bridging of Trigoldsulfonium Clusters by a Silver(I) Ion

1997 ◽  
Vol 52 (2) ◽  
pp. 301-304 ◽  
Author(s):  
Alexander Sladek ◽  
Hubert Schmidbaur
Keyword(s):  
Crystal Structure ◽  
Silver Atom ◽  
Metal Cluster ◽  
Phosphine Ligands ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Site Exchange ◽  
Mixed Metal Cluster ◽  
Short Contacts

Abstract Treatment of tris[(triphenylphosphine)gold(I)]-sulfonium tetrafluoroborate with AgBF4 (molar ratio 2:1) in tetrahydrofuran affords a hepta-nuclear mixed-metal cluster trication {[(Ph3P)6Au6AgS2](thf)}3+ as the tetrafluorobor­ate salt. The crystal structure of the compound has been determined by X-ray diffraction. The sil­ver atom is found in a bridging position between the two Au3S units with short contacts to both sulfur atoms and to three out of six gold atoms. The coordination sphere of the silver atom is complemented by a tetrahydrofuran molecule. In di(tri)chlorom ethane solutions there is rapid site exchange of the silver coordination as shown by virtual equivalence of the phosphine ligands on the NMR time scale at ambient temperature.

Preparation and characterization of some ruthenium(II) porphyrins containing tertiary phosphine axial ligands, including the crystal structure of (octaethylporphinato)bis(triphenylphosphine)ruthenium(II)

1984 ◽  
Vol 62 (4) ◽  
pp. 755-762 ◽  
Author(s):  
Sara Ariel ◽  
David Dolphin ◽  
George Domazetis ◽  
Brian R. James ◽  
Tak W. Leung ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phosphine Ligands ◽  
Tertiary Phosphine ◽  
X Ray ◽  
Porphyrin Complex ◽  
H Nmr ◽  
Axial Ligands ◽  
Nmr Data ◽  
Phosphine Complex

The ruthenium(II) porphyrin complex Ru(OEP)(PPh3)2 (OEP = the dianion of octaethylporphyrin) has been prepared from Ru(OEP)(CO)EtOH, and the X-ray crystal structure determined; as expected, the six-coordinate ruthenium is situated in the porphyrin plane and has two axial phosphine ligands. Synthesized also from the carbonyl(ethanol) precursors were the corresponding tris(p-methoxyphenyl)phosphine complex, and the Ru(TPP)L2 (TPP = the dianion of tetraphenylporphyrin, L = PPh3, P(p-CH3OC6H4)3, P″Bu3) and Ru(TPP)(CO)PPh3 complexes. Optical and 1H nmr data are presented for the complexes in solution. In some cases dissociation of a phosphine ligand to generate five-coordinate species occurs and this has been studied quantitatively in toluene at 20 °C for the Ru(OEP)L2 and Ru(TPP)L2 systems.

scholarly journals Syntheses, crystal structure and theoretical investigation of novel heteroleptic complexes of nickel(II) with N-R-sulfonyldithiocarbimate and phosphine ligands

2011 ◽  
Vol 376 (1) ◽  
pp. 238-244 ◽  
Author(s):  
Marcelo Ribeiro Leite Oliveira ◽  
Eduardo de Faria Franca ◽  
Celice Novais ◽  
Silvana Guilardi ◽  
Iterlandes Machado ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Theoretical Investigation ◽  
Phosphine Ligands ◽  
Heteroleptic Complexes

63Cu NQR and Structural Studies of Complexes Formed Between Cu(I) Halides and tris(o-methoxyphenyl)- or tris(p-tolyl)phosphine Ligands

1998 ◽  
Vol 53 (6-7) ◽  
pp. 625-629 ◽  
Author(s):  
Sundara Ramaprabhu ◽  
Nahid Amstutz ◽  
Edwin A. C. Lücken ◽  
Gérald Bernardinelli
Keyword(s):  
Crystal Structure ◽  
Phosphine Ligands ◽  
Cuprous Chloride ◽  
Structural Studies ◽  
Triphenyl Phosphine

Abstract The crystal structure of [tri(o-methoxyphenvl)phosphine]2 Cu2Br2 shows it to be a halogen-bridged dimer with three-coordinated Cu (I) sites. The 63Cu NQR frequency of the corresponding chloride indicates that it has a similar structure. The 63Cu NQR frequencies of the complexes of tri(p-tolyl)phosphine, L3Cu2X2 , with cuprous chloride and bromide are consistent with their having halogen-bridged structures with both three- and four-coordinated Cu(I) sites analogous to those formed by triphenyl-phosphine and tri(m-tolyl)phosphine. Cu(I) sites. [CuBr(P(C7H7O)3]2 ; Triclinic, P l̄, Z=2, a = 8.969(1), b= 10.510(2), c=l 1.428(2) Å, α=99.46(l), β=91.95(\), γ= 104.17(1)°, R=3.5%, Rω=2.2% .

Synthese, Struktur und Reaktivität labiler Rhodium(I)-Komplexe mit iPr2PC2H4NMe2 und iPr2PC2H4OMe als Phosphanliganden / Synthesis, Structure and Reactivity of Labile Rhodium(I) Complexes Containing iPr2PC2H4NMe2 and iPr2PC2H4OMe as Phosphine Ligands

1990 ◽  
Vol 45 (11) ◽  
pp. 1548-1558 ◽  
Author(s):  
Helmut Werner ◽  
Andreas Hampp ◽  
Karl Peters ◽  
Eva Maria Peters ◽  
Leonhard Walz ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Chelate Ring ◽  
Parent Compound ◽  
Phosphine Ligand ◽  
Phosphine Ligands ◽  
X Ray ◽  
Vinylidene Complexes ◽  
Square Planar

Square-planar rhodium(I) complexes [RhCl(iPr2PC2H4Y)2] (8, 9) containing one chelating and one P-bonded monodentate phosphine ligand are prepared from [RhCl(C8H14)2]2 (7) and the new functionalized phosphines iPr2PC2H4Y (5,6). Reaction of 9 (Y = NMe2) with CO and of 8 (Y = OMe) with CO, C2H4, C2H2, C2Ph2 and HC2Ph leads to opening of the chelate ring and formation of the complexes trans-[RhCl(L)(η1-P–iPr2PC2H4Y)2] (10-15). Treatment of 8 with H2 gives the dihydridorhodium(III) compound [RhH2Cl(iPr2PC2H4OMe)2] (16). The vinylidene complexes trans-[RhCl(=C=CHR)(η1-P– iPr2PC2H4OMe)2] (17, 18) are obtained by thermal or pyridine promoted rearrangement of 13 (L = C2H2) and 15 (L = HC2Ph). 13 and 15 have also been used as starting materials for the synthesis of the cyclopentadienyl alkyne and vinylidene complexes 19-21. The X-ray crystal structure of the parent compound 8 was determined.

Synthetic and structural chemistry of nickel(II) complexes containing dithiolato and phosphine ligands I. Preparation and crystal structure of Ni2(PPh3)2(edt)2

2010 ◽  
Vol 10 (3) ◽  
pp. 227-231 ◽  
Author(s):  
Rong Cao ◽  
Zhi-Ying Huang ◽  
Xin-Jian Lei ◽  
Bei-Sheng Kang ◽  
Mao-Chun Hong ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phosphine Ligands ◽  
Structural Chemistry
Sign in / Sign up

Export Citation Format

Share Document