The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule has a structure of formula I:

##STR00001##

wherein
R.sup.I, R.sup.II, R.sup.III and R.sup.IV is independently from another selected from the group consisting of: hydrogen, deuterium, N(R.sup.5).sub.2, OR.sup.5, SR.sup.5, Si(R.sup.5).sub.3, B(OR.sup.5).sub.2, OSO.sub.2R.sup.5, CF.sub.3, CN, halogen, C.sub.1-C.sub.40-alkyl, C.sub.1-C.sub.40-alkoxy, C.sub.1-C.sub.40-thioalkoxy, C.sub.2-C.sub.40-alkenyl, C.sub.2-C.sub.40-alkynyl, C.sub.6-C.sub.60-aryl, and C.sub.3-C.sub.57-heteroaryl,
and
R.sup.V is selected from the group of C.sub.1-C.sub.5 alkyl, C.sub.6-C.sub.18 aryl and C.sub.3-C.sub.15 heteroaryl.

The present invention discloses a hypocrellin derivative substituted both in a pen-position and in a 2-position by an amino, and a preparation method and use thereof. A general structural formula of the derivative is as represented by formulas I-a to I-d: ##STR00001## The hypocrellin derivative substituted both in a peri-position and in a 2-position by an amino prepared in the present invention has a maximum absorption wavelength of 600-650 nm and a molar extinction coefficient reaching about 20000-40000 M.sup.−1cm.sup.−1. Compared with unmodified hypocrellin or hypocrellin having only a 2-position modified, an absorption spectrum of the derivative is significantly red-shifted and the molar extinction coefficient is greatly improved, and the derivative can efficiently produce reactive oxygen species such as singlet oxygen in a photosensitive condition. In the same condition, the hypocrellin derivative substituted both in a pen-position and in a 2-position by an amino involved in the present invention, when used as a photosensitizer, has a stronger ability to photo-dynamically inactivate tumor cells than the first and second generation commercial photosensitizers.

An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.

An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.

Provided is a compound represented by formula (1). In formula (1), Ar.sup.1, Ar.sup.2, and Ar.sup.3 represent a 1,4-phenylene group or a divalent sulfur-containing aromatic heterocyclic group optionally having a substituent, and at least one of Ar.sup.1 and Ar.sup.2 has a fluorine atom as a substituent; n represents 1 or 2; R.sup.1 represents a single bond or a group selected from the group consisting of —OC(═O)—, —C(═O)O—, —C≡C—, —CH═CH—, —CH═N—, and —N═CH—; R.sup.2 represents an alkylamino group or an alkoxy group; R.sup.3 represents a group selected from the group consisting of an alkanediyl group, an alkanediyloxy group, an alkanediyloxycarbonyl group, and an alkanediylcarbonyloxy group; and R.sup.4 represents a polymerizable group or a hydrogen atom.

R.sup.4—R.sup.3-Ar.sup.1-(-R.sup.1-Ar.sup.2-).sub.n-N═N-Ar.sup.3-R.sup.2  (1)

Provided herein are methods of preparation of I by reacting i with acid where R.sub.1 and R.sub.2 are each independently a leaving group. Intermediates to make i are also claimed. ##STR00001##

The present invention related to compounds of Formula (I): or an agronomically acceptable salt thereof, wherein Q, X, Z, R.sup.2 and R.sup.3 areas described herein. The inventions further relates to compositions comprising said compounds, to methods of controlling weeds using said compositions, and to the use of Compounds of Formula (I) as a herbicide. ##STR00001##

The present invention related to compounds of Formula (I): or an agronomically acceptable salt thereof, wherein Q, X, Z, R.sup.2 and R.sup.3 areas described herein. The inventions further relates to compositions comprising said compounds, to methods of controlling weeds using said compositions, and to the use of Compounds of Formula (I) as a herbicide. ##STR00001##

Described herein are compounds having a hydrogen-bonding group and optionally a functional group for binding (e.g., covalently binding) the compound to another compound (e.g., hyaluronic acid and/or gelatin). A compound of the present invention may have a structure represented by and/or comprising Formula I, Formula II, Formula III, Formula IV, Formula IV′, Formula V, Formula V′, Formula VI, Formula VII, and/or Formula VIII as described herein. Compositions including compounds of the present invention along with methods of preparing and using the same are also described herein.

Described herein are compounds having a hydrogen-bonding group and optionally a functional group for binding (e.g., covalently binding) the compound to another compound (e.g., hyaluronic acid and/or gelatin). A compound of the present invention may have a structure represented by and/or comprising Formula I, Formula II, Formula III, Formula IV, Formula IV′, Formula V, Formula V′, Formula VI, Formula VII, and/or Formula VIII as described herein. Compositions including compounds of the present invention along with methods of preparing and using the same are also described herein.