Phosphorescent complexes are designed with intramolecular H-bonding properties to prevent deprotonation of neighboring molecules.

The present invention relates to compounds of the formula (1) and (2) which are suitable for use in electro?nic devices, in particular organic electroluminescent devices.

The present invention relates to compounds of the formula (1) and (2) which are suitable for use in electro?nic devices, in particular organic electroluminescent devices.

The present invention relates to a compound of the formula (I), to the use of the compound in an electronic device, and to an electronic device comprising a compound of the formula (I). The present invention furthermore relates to a process for the preparation of a compound of the formula (I) and to a formulation comprising one or more compounds of the formula (I).

The present invention relates to a compound of the formula (I), to the use of the compound in an electronic device, and to an electronic device comprising a compound of the formula (I). The present invention furthermore relates to a process for the preparation of a compound of the formula (I) and to a formulation comprising one or more compounds of the formula (I).

The present disclosure relates to complexes for intracellular imaging and also to methods and kits for intracellular imaging or cell labelling. Certain embodiments of the present disclosure provide a complex comprising a transition metal carbonyl compound, a conjugated bidentate ligand and a tetrazolato compound comprising a saccharide group.

Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R.sup.1 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aralkyl group having 7 to 10 carbon atoms which may have a substituent. In addition, R.sup.2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. Further, M represents a Group 9 element or a Group 10 element.

##STR00001##

Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R.sup.1 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aralkyl group having 7 to 10 carbon atoms which may have a substituent. In addition, R.sup.2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. Further, M represents a Group 9 element or a Group 10 element.

##STR00001##

Provided are a photoelectric conversion element including an electrically conductive support, a photoconductor layer, a charge transfer layer, and a counter electrode, in which the photoconductor layer has semiconductor fine particles carrying a metal complex dye represented by Formula (1), and at least one of metal complex dyes represented by Formulae (2) and (3), a dye-sensitized solar cell, a dye composition, and an oxide semiconductor electrode.

##STR00001##

In the formulae, M represents a metal ion. Ar.sup.11 to Ar.sup.14 each represent an aryl group or the like. L.sup.1 and L.sup.2 each represent an ethenylene group or the like. R.sup.11 to R.sup.14 each represent an alkyl group or the like. n.sup.11 and n.sup.12 each represent an integer of 0 to 3, and n.sup.13 and n.sup.14 each represent an integer of 0 to 4. X represents NCS or SCN. M.sup.1 and M.sup.2 each represent a proton, a metal cation, or a non-metal cation.

Provided are a photoelectric conversion element including an electrically conductive support, a photoconductor layer, a charge transfer layer, and a counter electrode, in which the photoconductor layer has semiconductor fine particles carrying a metal complex dye represented by Formula (1), and at least one of metal complex dyes represented by Formulae (2) and (3), a dye-sensitized solar cell, a dye composition, and an oxide semiconductor electrode.

##STR00001##

In the formulae, M represents a metal ion. Ar.sup.11 to Ar.sup.14 each represent an aryl group or the like. L.sup.1 and L.sup.2 each represent an ethenylene group or the like. R.sup.11 to R.sup.14 each represent an alkyl group or the like. n.sup.11 and n.sup.12 each represent an integer of 0 to 3, and n.sup.13 and n.sup.14 each represent an integer of 0 to 4. X represents NCS or SCN. M.sup.1 and M.sup.2 each represent a proton, a metal cation, or a non-metal cation.