Prototypical arsine–triel adducts (R3AsEX3 for E = B, Al, and Ga)

2010 ◽  
Vol 88 (8) ◽  
pp. 797-803 ◽  
Author(s):  
Eamonn Conrad ◽  
Janet Pickup ◽  
Neil Burford ◽  
Robert McDonald ◽  
Michael J. Ferguson
Keyword(s):  
Infrared Spectroscopy ◽  
Nmr Spectroscopy ◽  
Lewis Acids ◽  
Group 13 ◽  
X Ray ◽  
X Ray Crystallography

Complexes of arsine ligands (R3As, R = Me, Et, Ph) and Lewis acids of group-13 elements of the form EX3 (E = B, X = Ph, C6F5; E = Al, X = Cl, Br, I; E = Ga, X = Cl) have been isolated and characterized by X-ray crystallography, infrared spectroscopy, 1H, 13C{1H}, 11B{1H}, and 27Al NMR spectroscopy. The compounds are compared with rare arsine–triel adducts.

Phosphole complexes of copper(I) halides. Investigations of structure and bonding by x-ray crystallography, infrared spectroscopy, and CP/MAS phosphorus-31 NMR spectroscopy

1991 ◽  
Vol 30 (25) ◽  
pp. 4743-4753 ◽  
Author(s):  
Saeed. Attar ◽  
Graham A. Bowmaker ◽  
Nathaniel W. Alcock ◽  
James S. Frye ◽  
William H. Bearden ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Nmr Spectroscopy ◽  
X Ray ◽  
X Ray Crystallography ◽  
Structure And Bonding

Phosphole complexes of silver(I). Investigations of structure and bonding by x-ray crystallography, infrared spectroscopy, and CP/MAS and solution phosphorus-31 NMR spectroscopy

1991 ◽  
Vol 30 (22) ◽  
pp. 4166-4176 ◽  
Author(s):  
Saeed. Attar ◽  
Nathaniel W. Alcock ◽  
Graham A. Bowmaker ◽  
James S. Frye ◽  
William H. Bearden ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Nmr Spectroscopy ◽  
X Ray ◽  
X Ray Crystallography ◽  
Structure And Bonding

Synthesis, Characterisation and Structural Studies of [Zn(phen)3][Fe(CN)5(NO)]·2H2O·0.25MeOH and [(bipy)2(H2O)Zn(μ-NC)Fe(CN)4(NO)]·0.5H2O

2003 ◽  
Vol 58 (9) ◽  
pp. 916-921 ◽  
Author(s):  
Amitabha Datta ◽  
Samiran Mitra ◽  
Georgina Rosair
Keyword(s):  
Infrared Spectroscopy ◽  
Thermogravimetric Analysis ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Structural Studies ◽  
Crystal Lattices ◽  
X Ray ◽  
X Ray Crystallography ◽  
Distorted Octahedral ◽  
Solvent Molecules

Two new bimetallic complexes [Zn(phen)3][Fe(CN)5(NO)] · 2 H2O · 0.25 MeOH, (1) and [(bipy)2(H2O)Zn(μ-NC)Fe(CN)4(NO)] · 0.5 H2O, (2), have been isolated (where phen = 1,10-phenanthroline and bipy = bipyridyl) and characterised by X-ray crystallography [as the 2 H2O · 0.25 CH3OH solvate for (1) and hemihydrate for (2)] infrared spectroscopy and thermogravimetric analysis. Substitution of phenanthroline for bipyridyl resulted in a cyano-bridged bimetallic species rather than two discrete mononuclear metal complexes. The bond angles of Fe-N-O were shown to be practically linear for both 1 [179.2(7)°] and 2 [178.3(3)°], and the Zn atoms have distorted octahedral geometry. The solvent molecules in both crystal lattices take part in forming hydrogen-bonded networks.

Zirconium complexes of a cyclopentadienyl-amido ligand with a pendant amine donor via amine and alkane elimination

1996 ◽  
Vol 74 (9) ◽  
pp. 1696-1703 ◽  
Author(s):  
Ying Mu ◽  
Warren E. Piers ◽  
Donald C. MacQuarrie ◽  
Michael J. Zaworotko
Keyword(s):  
Lewis Acids ◽  
Methyl Chloride ◽  
Monoclinic Space Group ◽  
One Pot ◽  
Amido Complexes ◽  
X Ray ◽  
X Ray Crystallography ◽  
Zirconium Complexes ◽  
Alkane Elimination

Zirconium complexes of the multidentate ligand CpHNMeSiN(H)R (SiNR = -SiMe2N-t-butyl; NMe = -CH2CH2NMe2, 1) were prepared and characterized via amine and alkane elimination procedures. Reaction of 1 with Zr(NMe2)4 gave a mixture of bis-amido complexes 2 in which the ligand was 1,2 and 1,3 substituted. This mixture was converted to the analogous dichlorides 3 using Me2NH•HCl and 1,3-3 was purified at this stage; alternatively, 1,3-3 was obtained in one pot from 1 and Zr(NMe2)4 in ≈70% yield. Conversion of 1,3-3 to dimethyl compound (CpNMeSiNR)Zr(CH3)2, 1,3-4, was accomplished via reaction of the dichloride with methyllithium; methide abstraction with the Lewis acids B(C6F5)3 and [Ph3C]+[B(C6F5)4]− generated the cationic alkyls [(CpNMeSiNR)Zr(CH3)]+[R′B(C6F5)3]− (R′ = CH3, 6a; C6F6, 6b), which were characterized by NMR spectroscopy. Zirconium complexes containing 1 ligated as its 1,2 isomer were obtained from alkane elimination reactions between 1 and in situ prepared RnZrCl4−n (R = CH3, n = 3; R = CH2SiMe3, n = 2). 1,2-3 and the methyl chloride complex 1,2-(CpNMeSiNR)Zr(CH3)Cl, 5, were obtained in 18 and 30% yield, respectively. Complex 5 was characterized by X-ray crystallography (monoclinic, space group P21/a, a = 9.6951(10) Å, b = 14.3794(16) Å, c = 14.364(3) Å, V = 1990.3(5) Å3, Z = 4, R = 0.046, Rw = 0.041.) Key words: amine elimination, Cp-amido, zirconium complexes.

[Zn(phen)2(CX3COO)]+, X = H orCl; Influence of X on the Coordination Mode of the Carboxylate Group (phen = 1,10-Phenanthroline)

2005 ◽  
Vol 60 (10) ◽  
pp. 1049-1053 ◽  
Author(s):  
Zeanab Talaei ◽  
Ali Morsali ◽  
Ali R. Mahjoub
Keyword(s):  
Nmr Spectroscopy ◽  
Elemental Analysis ◽  
Coordination Mode ◽  
Bidentate Ligand ◽  
Carboxylate Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Coordinate Geometry ◽  
C Nmr

Two new ZnII(phen)2 complexes with trichloroacetate and acetate anions, [Zn(phen)2(CCl3COO)- (H2O)](ClO4) and [Zn(phen)2(CH3COO)](ClO4), have been synthesized and characterized by elemental analysis, IR, 1H NMR, 13C NMR spectroscopy. The single crystal X-ray data of these compounds show the Zn atoms to have six-coordinate geometry. From IR spectra and X-ray crystallography it is established that the coordination of the COO− group is different for trichloroacetate and acetate. The former acts as a monodentate whereas the latter acts as a bidentate ligand.

Structures of Nonheme Oxoiron(IV) Complexes from X-ray Crystallography, NMR Spectroscopy, and DFT Calculations

2005 ◽  
Vol 44 (24) ◽  
pp. 3690-3694 ◽  
Author(s):  
Eric J. Klinker ◽  
József Kaizer ◽  
William W. Brennessel ◽  
Nathaniel L. Woodrum ◽  
Christopher J. Cramer ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
X Ray ◽  
X Ray Crystallography
Sign in / Sign up

Export Citation Format

Share Document