Multisensor array for detection of analytes or mixtures thereof in gas or liquid phase

A multisensor array for detection of an analyte or mixtures thereof in the gas phase or in the liquid phase, comprising at least two different chemo-selective compounds represented by the general formulas 1) and 2) immobilized on a solid support spatially separated and individually addressable:

• wherein,
• X1, X2, X3, and X4 each independently represents a hetero atom selected from the group consisting of sulfur and selenium;
• and wherein the sub stituents R1-R4 of general formula 1) are:
• R1 is a substituent selected from the group consisting of hydrogen;
• halogen;
• C1-C4-alkyl;
• C1-C20- alkylsulfanyl;
• 2-substituted ethylsulfanyl, wherein the substituents are selected from the group consisting of carboxamide, cyano, hydroxy, amino, (N-benzoyl)amino, halogen, methylthio, phenylcarboxy, and phenoxycarbonyl;
• 2-(methylthio)ethylsulfanyl copper bromide;
• benzoylsulfanyl;
• methoxycarbonyl;
• cyano;
• carboxy;
• phenyl;
• benzyl;
• phenyl para-substituted by methoxy or halogen;
• and (4′- {[7-(2-cyanoethylthio)-2,3-dimethoxy-carbonyl-6-thio-methylene ] tetrathiafulvalene}-4-bipyridine)methylsulfanyl;
• R2 is a substituent selected from the group consisting of hydrogen;
• halogen;
• C1-C4-alkyl;
• C1-C20- alkylsulfanyl;
• 2-substituted ethylsulfanyl1 wherein the substituents are selected from the group consisting of cyano, hydroxy, amino, (N-benzoyl)amino, halogen, methylthio, phenylcarboxy, phenoxycarbonyl, and (4-nitrophenyl);
• benzoylsulfanyl;
• cyano;
• carboxy;
• methoxycarbonyl;
• phenyl;
• benzyl;
• and phenyl para-substituted by methoxy or halogen;
• R3 is a substituent selected from the group consisting of hydrogen;
• halogen;
• C1-C4-alkyl;
• C1-C20- alkylsulfanyl;
• 2-substituted ethylsulfanyl wherein the substituents are selected from the group consisting of cyano, hydroxy, amino, (N-benzoyl)amino, halogen, methylthio, phenylcarboxy, phenoxycarbonyl, and (4-nitrophenyl);
• benzoylsulfanyl;
• methoxycarbonyl;
• cyano;
• carboxy;
• unsubstituted phenyl and phenyl para-substituted by halogen;
• R4 is a substituent selected from the group consisting of hydrogen;
• halogen;
• C1-C4-alkyl;
• C1-C20- alkylsulfanyl;
• 2-substituted ethylsulfanyl wherein the substituents are selected from the group consisting of cyano, carboxamide, hydroxy, amino, (N-benzoyl)amino, halogen, methylthio, phenylcarboxy, phenoxycarbonyl;
• benzoylsulfanyl;
• benzyl;
• methoxycarbonyl;
• cyano;
• and carboxy;
• or
• R1 and R2 together form a group selected from the group consisting of:
• R2 and R3 together form a group selected from the group consisting of:
• wherein the substituents R1-R4 of general formula 2) are:
• R2 is a substituent selected from the group consisting of methoxycarbonyl;
• C1-C20-alkylsulfanyl;
• and 2-substituted ethylsulfanyl, wherein the substituents are selected from the group consisting of 4-nitrophenyl and 2-(2-methoxyethoxy)ethoxy;
• R3 is a substituent selected from the group consisting of C1-C20-alkylsulfanyl;
• 2-substituted ethylsulfanyl, wherein the substituents are selected from the group consisting of 4-nitrophenyl and 2-(2-methoxyethoxy)ethoxy;
• and methoxycarbonyl;
• R1 and R4 together form a group selected from the group consisting of:
• and the at least two compounds have a molecular weight below 1700.