Compound containing a pentalene unit having general formula (I) wherein R.sub.1 and R.sub.2, equal to or different from each other, are selected from: linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.12, alkyl groups, saturated or unsaturated, optionally containing heteroatoms, cycloalkyl groups optionally substituted, linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.12, alkoxyl groups, saturated or unsaturated, optionally substituted; or the groups R.sub.1 and R.sub.2 can be optionally bound to each other so as to form, together with the carbon atoms to which they are bound, a cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; R.sub.3 is selected from aryl groups optionally substituted, heteroaryl groups optionally substituted; n is 0 or 1; with the proviso that: when n is 0, X represents a covalent bond and Y represents a sulfur atom (S); when n is 1, X is equal to Y, and represents a CH group, or a nitrogen atom (N). Said compound containing a pentalene unit, as such or after suitable functionalization and polymerization, can be advantageously used in the construction of photovoltaic devices (or solar devices) such as, for example, photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), on both rigid and flexible supports. Said compound containing a pentalene unit can also be advantageously used as a constitutive unit of luminescent solar concentrators (LSCs). Furthermore, said compound containing a pentalene unit can be advantageously used as precursor of monomeric units in the preparation of semiconductor polymers. ##STR00001##

Compound containing a pentalene unit having general formula (I) wherein R.sub.1 and R.sub.2, equal to or different from each other, are selected from: linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.12, alkyl groups, saturated or unsaturated, optionally containing heteroatoms, cycloalkyl groups optionally substituted, linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.12, alkoxyl groups, saturated or unsaturated, optionally substituted; or the groups R.sub.1 and R.sub.2 can be optionally bound to each other so as to form, together with the carbon atoms to which they are bound, a cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; R.sub.3 is selected from aryl groups optionally substituted, heteroaryl groups optionally substituted; n is 0 or 1; with the proviso that: when n is 0, X represents a covalent bond and Y represents a sulfur atom (S); when n is 1, X is equal to Y, and represents a CH group, or a nitrogen atom (N). Said compound containing a pentalene unit, as such or after suitable functionalization and polymerization, can be advantageously used in the construction of photovoltaic devices (or solar devices) such as, for example, photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), on both rigid and flexible supports. Said compound containing a pentalene unit can also be advantageously used as a constitutive unit of luminescent solar concentrators (LSCs). Furthermore, said compound containing a pentalene unit can be advantageously used as precursor of monomeric units in the preparation of semiconductor polymers. ##STR00001##

A compound represented by formula (1):

##STR00001##

wherein R.sup.1 to R.sup.4, a to d, L.sup.0 to L.sup.2, and Ar are as defined in the description, is a material providing an organic electroluminescence device which can be operated at a low driving voltage and has a long lifetime.

A compound represented by formula (1):

##STR00001##

wherein R.sup.1 to R.sup.4, a to d, L.sup.0 to L.sup.2, and Ar are as defined in the description, is a material providing an organic electroluminescence device which can be operated at a low driving voltage and has a long lifetime.

The present application relates to compounds of formulae (I)-(VII) as defined herein, compositions containing these compounds, methods of their use, and methods of making. The compounds have nematacide activity.

Organosulfur compounds of formula (I), where R.sub.1 and R.sub.2 are as defined herein, and pharmaceutical compositions comprising these organosulfur compounds. Uses of the organosulfur compounds and the pharmaceutical compositions for treating infection and/or for treating inflammation and/or for reducing the formation of blood clots.

##STR00001##

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).