Patent ID: 6936721

Claim:
A metal (II) complex with a thiacalix[4]arene, and salts, solvates and hydrates thereof, having the formula (I): wherein: (a)—R 1a , R 2a , R 3a et R 4a , being the same or different, each is independently: a hydrogen atom; a (C 1 -C 12 ) alkyl group; or a (C 2 -C 12 ) alkenyl group; R 1b , R 2b , R 3b and R 4b , being the same or different, each being: a hydrogen atom; a halogen atom; a (C 1 -C 6 ) alkyl group; a phenylazo group eventually substituted preferably in position 4 by a nitro group; a —N═CHR 5 group, in which the R 5 is a (C 1 -C 4 ) alkyl, pyridyl or phenyl group; a —C≡C—R 6 group, in which R 6 is a hydrogen atom; a (C 1 -C 4 ) alkyl, tri(C 1 -C 4 ) akylsilyl, or phenyl group; a nitro group, or a —NR 7 R 8 group, in which R 7 is a hydrogen atom and R 8 is a hydrogen atom or a —C(O)R 5 group with R 5 being chosen from a (C 1 -C 4 ) alkyl, pyridyl or phenyl group, at least one of R 1b , R 2b , R 3b and R 4b being said optionally substituted phenylazo group, said —N═CHR 5 group, said —C≡C—R 6 group or said —NR 7 R 8 group; or wherein: (b)—R 1a , R 2a , R 3a and R 4a , being the same or different, each is independently: a hydrogen atom; a (C 1 -C 12 ) alkyl group; or a (C 1 -C 12 ) alkenyl group; R 1b , R 2b , R 3b and R 4b , being the same or different, each being: a hydrogen atom; a halogen atom; a (C 1 -C 6 ) alkyl group; a phenylazo group, eventually substituted preferably at position 4 with a nitro group; a —N═CHR 5 group, in which the R 5 is a (C 1 -C 4 ) alkyl, pyridyl or phenyl group; a —C≡C—R 6 group, in which R 6 is a hydrogen atom, a (C 1 -C 4 ) alkyl, tri (C 1 -C 4 ) alkylsilyl, phenyl group, or a group having the formula: where R′ 6 is a hydrogen atom or a phenyl, optionally substituted in para by a (C 1 -C 6 ) alkyl group; a nitro group, or a —NR 7 R 8 group, in which R 7 is a hydrogen atom and R 8 is a hydrogen atom or a —C(O)R 5 group with R 5 being chosen from a (C 1 -C 4 ) alkyl, pyridyl or phenyl group, at least one of R 1b , R 2b , R 3b and R 4b being said optionally substituted phenylazo group, said —N═CHR 5 group, said —C≡C—R 6 group or said —NR 7 R 8 group.