{"id":26,"date":"2013-11-04T21:10:09","date_gmt":"2013-11-04T19:10:09","guid":{"rendered":"https:\/\/wissen.science-and-fun.de\/chemistry\/?page_id=26"},"modified":"2013-11-04T21:10:09","modified_gmt":"2013-11-04T19:10:09","slug":"29si-chemical-shifts","status":"publish","type":"page","link":"https:\/\/wissen.science-and-fun.de\/chemistry\/spectroscopy\/29si-chemical-shifts\/","title":{"rendered":"29Si chemical shifts"},"content":{"rendered":"

29<\/sup>Si chemical shifts<\/b><\/p>\n

SiMe4<\/sub> = 0 ppm<\/p>\n

All chemical shifts given in ppm!<\/p>\n

Source: Bruker Almanac 2012<\/small><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nchemical shift range<\/th>\n<\/tr>\n
Rn<\/sub>SiH4-n<\/sub><\/td>\n-30 to 20<\/td>\n<\/tr>\n
Men<\/sub>Si(Si\u2261)4-n<\/sub><\/td>\nn=4 -20 to -5<\/p>\n

n=3 -50 to -25<\/p>\n

n=2 -90 to -70<\/p>\n

n=1 -125 to -115<\/td>\n<\/tr>\n

Men<\/sub>Si(OSi\u2261)4-n<\/sub><\/td>\nn=4 5 to 10<\/p>\n

n=3 -20 to -15<\/p>\n

n=2 -70 to -55<\/p>\n

n=1 -110 to -105<\/td>\n<\/tr>\n

(OH)n<\/sub>Si(OSi\u2261)4-n<\/sub><\/td>\n(n=4) -65 to -110 (n=0)<\/td>\n<\/tr>\n
Si(OSi\u2261)n<\/sub>(OAl\u2261)4-n<\/sub><\/td>\n-80 to -105<\/td>\n<\/tr>\n
SiL6<\/sub><\/td>\n-195 to -125<\/td>\n<\/tr>\n
SiX4<\/sub><\/td>\n-20 up to -346<\/td>\n<\/tr>\n
MSi\u2261 transition metal silyl compounds<\/td>\n-95 up to 173<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

29Si chemical shifts SiMe4 = 0 ppm All chemical shifts given in ppm! Source: Bruker Almanac 2012 Type chemical shift range RnSiH4-n -30 to 20 MenSi(Si\u2261)4-n n=4 -20 to -5 n=3 -50 to -25 n=2 -90 to -70 n=1 -125 to -115 MenSi(OSi\u2261)4-n n=4 5 to 10 n=3 -20 to -15 n=2 -70 to -55 … <\/p>\n

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