Fluorinated organosilicon compounds

A fluorinated organosilicon compound having the following general formula (1):

• wherein R1 is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms,
• X is independently —CH2, —CH2O—, —CH2OCH2— or —Y—NR2—CO— wherein Y is —CH2— or a divalent group of the following structural formula (I):
• and R2 is hydrogen or a monovalent hydrocarbon group having 1 to 10 carbon atoms,
• Rf1 is a monovalent perfluoroalkyl or perfluorooxy-alkyl group,
• Z is a divalent hydrocarbon group of 1 to 15 carbon atoms which may contain an ether bond,
• subscripts a, b, c and d are integers satisfying a≦3, b≦3, c≦3, d≦3, 3≦a+c≦5, 1≦b+d≦3, a+b≦3, and c+d≦3, and e is independently 0 or 1.