Patent ID: 8481435

Claim:
A process for preparing a functionalized Si/Ge-surface, wherein an unfunctionalized Si/Ge-surface is contacted in the presence of ultraviolet radiation with a C 2 -C 50 alkene and/or a C 2 -C 50 alkyne, the alkene and/or alkyne being optionally substituted and/or being optionally interrupted by one or more heteroatoms, wherein the unfunctionalized Si/Ge-surface is selected from the group consisting of silicon nitride, silicon carbide, germanium nitride, germanium carbide and strained silicon, wherein the C 2 -C 50 alkene and/or a C 2 -C 50 alkyne are represented by Formula (VI): E-A-B—C (VI) wherein: A is a linear, branched or cyclic, optionally substituted alkylene, or alkenylene group having 2 to 24 carbon atoms, the alkenylene group being a 1-alkenylene or an internal alkenylene group; B is a —[X-D-X] n — group, wherein all X groups are independently selected from the group consisting of —O—, —S— and —N(R 1 )— (wherein R 1 is as defined above), D represents an (optionally substituted) ethylene group, an (optionally substituted) propylene group, or a mixture thereof (wherein the ethylene groups and propylene groups may be substituted with one or more substituents P as enumerated for the C 1 -C 50 alkyl and C 2 -C 50 alkenyl groups), and n is in the range of 1-100; C is selected from the group consisting of hydrogen, a linear, branched, or cyclic, optionally substituted C 1 -C 24 alkyl group, an optionally substituted C 6 -C 24 (hetero)aryl group, an optionally substituted C 7 -C 24 (hetero)arylalkyl group, and an optionally substituted C 7 -C 24 alkyl(hetero)aryl group, wherein the alkyl groups, (hetero)aryl groups, (hetero)arylalkyl groups and alkyl(hetero)aryl groups may be substituted with one or more substituents P; the substituent P is selected from the group consisting of hydrogen; —CH═CH(R 1 ) 2 ; —C≡CR 1 ; halogen; —CN; —NCX; —XCN; —XR 1 ; —N(R 1 ) 2 ; — + N(R 1 ) 3 ; —CN; —C(X)N(R 1 ) 2 ; —C(X)R 1 ; —C(X)XR 1 ; —S(O)R 1 ; —S(O) 2 R 1 ; —S(O)OR 1 ; —S(O) 2 OR 1 ; —S(O)N(R 1 ) 2 , —S(O) 2 N(R 1 ) 2 ; —OS(O)R 1 ; —OS(O) 2 R 1 ; —OS(O)OR 1 ; —OS(O) 2 OR 1 ; —P(O)(R 1 )(OR 1 ); —P(O)(OR 1 ) 2 ; —OP(O)(OR 1 ) 2 ; —Si(R 1 ) 3 ; —XC(X)R 1 ; —XC(X)XR 1 ; —XC(X)N(R 1 ) 2 ; —N(R 1 )C(X)R 1 ; —N(R 1 )C(X)XR 1 ; and —N(R 1 )C(X)N(R 1 ) 2 ; wherein X is oxygen or sulphur and wherein all R 1 substituents are independently selected from the group consisting of hydrogen, C 1 -C 24 alkyl groups, C 6 -C 24 (hetero)aryl groups, C 7 -C 24 alk(hetero)aryl groups, and C 7 -C 24 (hetero)arylalkyl groups; and E is a group according to Formula (VII): wherein F is hydrogen or a linear C 1 -C 6 alkyl group.