All manipulations were
performed under a dry, deoxygenated nitrogen atmosphere using Schlenk
techniques. All commercially available chemicals were used as received.
Pyrazol-1-yldithiocarbamate (L1 ), 3,5-dimethylpyrazol-1-yldithiocarbamate
(L2 ), and indazol-1-yldithiocarbamate (L3 ) were synthesized according to literature methods.53 ,54 Gold starting materials [Au2Cl2(dppe)],
[Au2Cl2(dppp)], and [Au2Cl2(dpph)] {dppe = 1,2-bis(diphenyl-phosphino)ethane; dppp
= 1,3-bis(diphenylphosphino)propane; and dpph = 1,6-bis(diphenyl-phosphino)hexane}
were synthesized according to the literature procedures.55 Infrared (IR) spectra were recorded as KBr pellets
on a Bruker Tensor27 spectrophotometer. 1H, 13C{1H}, and 31P{1H} NMR spectra were
recorded on a Varian 2000 spectrometer (1H, 300 MHz; 13C, 75.4 MHz; and 31P, 121.5 MHz) in CDCl3 or D2O at room temperature. Elemental analysis was performed
on a Fisons elemental analyzer at the University of Cape Town, South
Africa. ESI-MS spectra were recorded on a Waters API Quattro Micro
spectrometer at the University of Stellenbosch, South Africa. The
mass spectra were collected using 3.0 s cyclical scans and applying
the sample cone voltage of 15 V at the source block temperature of
100 °C. Desolvation temperature was 350 °C at desolvation
cone gas flow rate of 350 L/h.
performed under a dry, deoxygenated nitrogen atmosphere using Schlenk
techniques. All commercially available chemicals were used as received.
Pyrazol-1-yldithiocarbamate (
(
[Au2Cl2(dppp)], and [Au2Cl2(dpph)] {dppe = 1,2-bis(diphenyl-phosphino)ethane; dppp
= 1,3-bis(diphenylphosphino)propane; and dpph = 1,6-bis(diphenyl-phosphino)hexane}
were synthesized according to the literature procedures.55 Infrared (IR) spectra were recorded as KBr pellets
on a Bruker Tensor27 spectrophotometer. 1H, 13C{1H}, and 31P{1H} NMR spectra were
recorded on a Varian 2000 spectrometer (1H, 300 MHz; 13C, 75.4 MHz; and 31P, 121.5 MHz) in CDCl3 or D2O at room temperature. Elemental analysis was performed
on a Fisons elemental analyzer at the University of Cape Town, South
Africa. ESI-MS spectra were recorded on a Waters API Quattro Micro
spectrometer at the University of Stellenbosch, South Africa. The
mass spectra were collected using 3.0 s cyclical scans and applying
the sample cone voltage of 15 V at the source block temperature of
100 °C. Desolvation temperature was 350 °C at desolvation
cone gas flow rate of 350 L/h.