... 400 CANADIAN JOURNAL OF CHEMISTRY. VOL. ... 1200 s 1173 m 1190 s 1 137 vs C-0;;~tching 1123 vs 1 118 vs 1120 vs 1 103 vs 1 104 vs CD2 scissoring 1075 w 1061 m 1071 s 1055 w "2 'gg E: ::: } CD ~ wagging 966 s 949 sh 942 :;; ) CD ~ twisting 887 w 903 w 858 w ? 760 ...