P(C6H5)3; chlorine; HCl in ethanol; dichloromethane Ir-compd. dissolved in warm ethanol, dropwise addn. of ascorbic acid in ethanol, addn. of ligand in CH2Cl2, refluxed for 1 h, ethanol evapd. in vac., dissolved in CH2Cl2, oxidised with chlorine, saturated with HCl, after 1 h purged with nitrogen; partioned with water, organic phase separated and dried over Na2SO4, reduced in vac., addn. of diethyl ether, left at -10°C, liquid decanted off, dried in vac.; elem. anal.;

HCl; chlorine in ethanol; dichloromethane Ir-compd. dissolved in warm ethanol, dropwise addn. of ascorbic acid in ethanol, addn. of ligand in CH2Cl2, refluxed for 1 h, ethanol evapd. in vac., dissolved in CH2Cl2, oxidised with chlorine, saturated with HCl, after 1 h purged with nitrogen; partioned with water, organic phase separated and dried over Na2SO4, reduced in vac., addn. of diethyl ether, left at -10°C, liquid decanted off, dried in vac.; elem. anal.;

HCl; chlorine in ethanol; dichloromethane Ir-compd. dissolved in warm ethanol, dropwise addn. of ascorbic acid in ethanol, addn. of ligand in CH2Cl2, refluxed for 1 h, ethanol evapd. in vac., dissolved in CH2Cl2, oxidised with chlorine, saturated with HCl, after 1 h purged with nitrogen; partioned with water, organic phase separated and dried over Na2SO4, reduced in vac., addn. of diethyl ether, left at -10°C, liquid decanted off, dried in vac.; elem. anal.;

HCl; chlorine in ethanol; dichloromethane Ir-compd. dissolved in warm ethanol, dropwise addn. of ascorbic acid in ethanol, addn. of ligand in CH2Cl2, refluxed for 1 h, ethanol evapd. in vac., dissolved in CH2Cl2, oxidised with chlorine, saturated with HCl, after 1 h purged with nitrogen; partioned with water, organic phase separated and dried over Na2SO4, reduced in vac., addn. of diethyl ether, left at -10°C, liquid decanted off, dried in vac.; elem. anal.;

HCl; chlorine in ethanol; dichloromethane Ir-compd. dissolved in warm ethanol, dropwise addn. of ascorbic acid in ethanol, addn. of ligand in CH2Cl2, refluxed for 1 h, ethanol evapd. in vac., dissolved in CH2Cl2, oxidised with chlorine, saturated with HCl, after 1 h purged with nitrogen; partioned with water, organic phase separated and dried over Na2SO4, reduced in vac., addn. of diethyl ether, left at -10°C, liquid decanted off, dried in vac.; elem. anal.;