Abstract: The invention relates to a method suitable for detecting, capturing and/or selectively releasing chemical elements selected from poor metals, alkalines, alkaline earths, actinides and rare earths. Said method involves a molecular assembly formed by at least one amine, and at least one aldehyde and/or an imine and/or CO2, or an adduct formed by the contact between an amine and CO2, and at least one of said chemical elements. The invention also relates to a kit for implementing said method for detection, capture and/or release.

Abstract: The invention relates to a method suitable for detecting, capturing and/or selectively releasing chemical elements selected from poor metals, alkalines, alkaline earths, actinides and rare earths. Said method involves a molecular assembly formed by at least one amine, and at least one aldehyde and/or an imine and/or CO2, or an adduct formed by the contact between an amine and CO2, and at least one of said chemical elements. The invention also relates to a kit for implementing said method for detection, capture and/or release.

Abstract: Compounds of formula (I) are disclosed. The tetrapyrole ring in formula (I) can be substituted with a metal cation (M); R1, R2, R3 and R4 separately represent a hydrogen atom, a C1-4 alkyl or alkyloxy radical, or a phenyl radical optionally substituted by vinyl, hydroxy, nitro, amino, bromo, chloro, fluoro, iodo, benzyloxy, or hydroxymethyl radicals; R5, R6, R7 and R8 separately represent a hydrogen atom or a C1-4 alkyl radical; Ra, Rb and Rc separately represent a hydrogen atom, a C1-4 alkyl or alkyloxy radical optionally substituted by a halogen, or a phenyl radical optionally substituted by vinyl, hydroxy, nitro, amino, bromo, chloro, fluoro, iodo, benzyloxy, or hydroxymethyl radicals, wherein at least one of Ra, Rb, and Rc is a phenyl radical. Compounds of formula (I) bound to a silica, a sol-gel material or a mesoporous silica are useful for selective trapping of carbon monoxide.

Abstract: The invention concerns compounds of formula (I), wherein: R1, R2, R3 and R4 represent a hydrogen atom, an alkyl radical comprising 1 to 4 carbon atoms, a phenyl radical optionally substituted by one or several groups selected among vinyl, hydroxy, nitro, amino, bromo, chloro, fluoro, iodo, benzyloxy radicals, alkyl or alkyloxy radicals comprising 1 to 4 carbon atoms optionally substituted by one or several bromo, chloro, fluoro or iodo groups; R5, R6, R7 and R8 represent a hydrogen atom or an alkyl radical comprising 1 to 4 carbon atoms; Ra, Rb, and Rc represent a hydrogen atom, a phenyl radical optionally substituted by one or several groups selected among the vinyl, hydroxy, nitro, amino, bromo, chloro, fluoro, iodo, benzyloxy radicals, alkyl or alkyloxy radicals comprising 1 to 4 carbon atoms, optionally substituted by one or several bromo, chloro, fluoro or iodo groups.