Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Peter R. Wells"'
Publikováno v:
ChemInform. 29
Autor:
Peter R. Wells, Van Phuc Le
Publikováno v:
Australian Journal of Chemistry. 50:1119
The preparation of four of the five possible fluoroazulenes is described. The 19F chemical shifts are compared with those of related aromatic systems. The 1H and 13C n.m.r. spectra have been assigned on the basis of 19F/13C coupling and of 1H/13C cor
Autor:
Van Phuc Le, Peter R. Wells
Publikováno v:
Australian Journal of Chemistry. 45:1057
The preparation of 1-, 2- and 6-trifluoromethylazulenes by a modified Burton reaction employing sodium trifluoroacetate is described. By the same method 1- and 2-trifluoromethylnaphthalenes have been made. The 1H and 13C n.m.r. spectra have been assi
Autor:
Peter R. Wells, Vittorio Lucchini
Publikováno v:
Journal of Organometallic Chemistry. 92:283-290
The formation constants for CH3HgCl2− at 26°C (0.31 l/mole), and for CH3HgBr2− at 26°C (0.94 l/mole) and at 60°C (0.70 l/mole) in ethanol solution have been determined from the variation of Hg NMR chemical shift (by INDOR) with composition of
Autor:
Peter R. Wells, Matthew J. Cuthbertson
Publikováno v:
Journal of Organometallic Chemistry. 216:349-369
Rate data for the concurrent reaction of hexamethylditin with dimethyltin dichloride and with two of the products of this reaction in methanol solution at 30°C have been analysed in terms of individual steps. Line-broadening phenomena in the system
Publikováno v:
Organic Magnetic Resonance. 22:556-560
Chemical shift and scalar coupling constant data have been obtained for the H, C and Si nuclei in allyl, methally, cis‐ and trans‐crotyl, cis‐2‐methyl‐2‐butenyl and 3‐methyl‐2‐butenyl derivatives of trimethylsilane.
Publikováno v:
Journal of Organometallic Chemistry. 184:39-47
Despite unsuccessful attempts to trap it, evidence is presented that the polymeric "dimethyltin" obtained from hexamethyltin by reaction with trimethyltin chloride arises from monomeric dimethyltin as a reactive intermediate. Polymerisation proceeds
Autor:
Peter R. Wells, Darryl William Hawker
Publikováno v:
Organic Magnetic Resonance. 22:280-285
Chemical shift and scalar coupling constant information has been obtained from the 1H, 13C, 29Si and 119Sn NMR spectra of a series of compounds (CH3)3SnCH2M(CH3)3, where M = Sn, Ge, Si or C and with one or two CH3(Sn) groups replaced by Cl, Br or I.
Autor:
Peter R. Wells, Vittorio Lucchini
Publikováno v:
Journal of Organometallic Chemistry. 199:217-222
The dissociation constants of (CH3)3PbCl at 26°C in water and in methanol have been determined to be 0.51 mol/l and 4.65 x 10 -4 mol/l, respectively, from the variations of Pb NMR chemical shifts (by INDOR) with concentration. Chemical shifts to (CH