CrystEngComm, 2003, 5

Additions and corrections

Solventless isomerisation reactions: A crystallographic and thermomicroscopic investigation of some six coordinate RuCl2L2L′2 complexes

Owen P. M. Horwood, David G. Billing, Demetrius C. Levendis, Florence M. Nareetsile and Neil J. Coville

CrystEngComm, 2003, 5, DOI: 10.1039/b313093b. Amendment published 15th October 2004

Please replace Table 1 from the paper with Table 1 given below:

Table 1  Heating experiments of ttt-RuCl2(t-BuNC)2(PPh3)2 single crystals

Expt. No. Temperature/ºC Duration Observations

1a 180d 4–5 min At 179–180 ºC crystals started to darken rapidly. At expt. end: crystals had clear (yellow) and dark (black) regions. Crystal morphology unchanged.
XRDf: Crystal structure of ttt-isomer (starting material) solved.
NMRg: 65% ttt-isomer, 35% cct-isomer.
2b 180e 11 h At expt. end: crystals totally darkened. Crystal morphology unchanged.
XRDf: microcrystalline powder rings.
NMRg: 56% ttt-isomer, 44% cct-isomer.
3b 180e 30 h At expt. end: crystals totally darkened. Crystal morphology unchanged.
XRDf: microcrystalline powder rings.
4a 180d 48 min At 165–170 ºC the initially yellow crystals turned ligh orange in colour. At 180 ºC crystals started to darken rapidly, then more slowly. At expt. end: crystals almost completely darkened. Crystal morphology unchanged.
XRDf: microcrystalline powder rings.
5a 165d 1 h At expt. end: crystals not darkened (remained yellow). Crystal morphology unchanged.
XRDf: Crystal structure of ttt-isomer (starting material) solved.
6c 165d 5 h At 155 ºC the initially yellow crystals turned light orange in colour. At 160 ºC crystals started to darken slowly. At expt. end: crystals totally darkened. Crystal morphology unchanged.
XRDf: microcrystalline powder rings.
7c 155d 4 h After 20 min crystals started to darken slowly. At expt. end: crystals had clear (yellow) and dark (black) regions. Crystal morphology unchanged.
XRDf: Feint powder rings detected. Crystal structure of ttt-isomer (starting material) solved.
NMRg: 67% ttt-isomer, 33% cct-isomer.
 
 
a Heating plate cell used. b Shortened NMR tube used, flushed with N2 gas, immersed in oil bath. c Heated gas stream cell used. d Heating rate to experiment temperature: 2.5 ºC min–1. e Heating rate to experiment temperature: 10 ºC min–1. f XRD behaviour of selected crystals tested on single-crystal diffractometer. g Minimum of 3–4 crystals dissolved in CDCl3, 400 MHz spectrometer, ttt- and cct-isomer Me resonance (1H NMR data) compared.


The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.


Full Article