A curable resin composition for a lens, including a coloring agent A having a maximal absorption at a wavelength of 520 to 620 nm, in which a wavelength dispersion WD of a cured product of the composition, which is calculated by the following expression (X), is 2.0×10.sup.−5 or more; a cured product formed of the curable resin composition for a lens; a diffractive optical element; and a multilayer diffractive optical element.

WD=(nC−n(1129))/(1129−656)  Expression (X)

In the expression, nC represents a refractive index at a wavelength of 656 nm and n(1129) represents a refractive index at a wavelength of 1129 nm.

A curable resin composition for a lens, including a coloring agent A having a maximal absorption at a wavelength of 520 to 620 nm, in which a wavelength dispersion WD of a cured product of the composition, which is calculated by the following expression (X), is 2.0×10.sup.−5 or more; a cured product formed of the curable resin composition for a lens; a diffractive optical element; and a multilayer diffractive optical element.

WD=(nC−n(1129))/(1129−656)  Expression (X)

In the expression, nC represents a refractive index at a wavelength of 656 nm and n(1129) represents a refractive index at a wavelength of 1129 nm.

There is provided with a porphyrin compound represented by Formula (I) or a salt thereof; ##STR00001## where A is a linking group represented as —X—NHCO— where X is a C.sub.1 to C.sub.6 alkylene group, each of R.sub.1, R.sub.2, R.sub.4, R.sub.5, R.sub.7, R.sub.8, R.sub.10, and R.sub.11 is a hydrogen atom, each of R.sub.3, R.sub.6, and R.sub.9 is a substituent of Formula; R.sub.12 is selected from a group of substituents represented by Formulae, R.sub.13 is a sulfo group, Ra, Rb, and Rc are substituents independently selected from C.sub.1 to C.sub.6 alkyl groups, and Rd is a hydrogen atom or a C.sub.1 to C.sub.6 alkyl group, and Rx is a substituent represented by General Formula. The porphyrin compound is useful as a cancer therapeutic agent, photosensitizer and fluorescent probe.

A series of novel molecular conjugates is disclosed herein, consisting of a photosensitizer moiety chemically bonded to at least one diazirine moiety. Such conjugates react in air and/or water with non-coherent visible light to form singlet oxygen, an energetic species known to be highly toxic to abroad range of pathogens, including bacteria, fungi, microbial biofilms and viruses. Such non-specific cellular damage limits the pathogen's ability to evolve into a resistant form. The diazirine moiety of the conjugate enables the reagent to be adhesively bonded to a plethora of substrates, such as, for example, polymers, non-woven fabrics, surgical masks and gloves, hospital gowns, hospital surfaces (such as counters, mattresses, curtains) medical implants, bandages, wound dressings, or air-filters. The resulting treated substrates act as an effective pathogen-killing barrier, providing protection against the spread of such pathogens to non-infected persons.

A method of making a bacteriochlorin is carried out by condensing a pair of compounds of Formula II ##STR00001##
to produce the bacteriochlorin, wherein R is an acetal or aldehyde group. The condensing may be carried out in an organic solvent, preferably in the presence of an acid. The bacteriochlorins are useful for a variety of purposes such as active agents in photodynamic therapy, luminescent compounds in flow cytometry, solar cells, light harvesting arrays, and molecular memory devices.

A method of making a bacteriochlorin is carried out by condensing a pair of compounds of Formula II ##STR00001##
to produce the bacteriochlorin, wherein R is an acetal or aldehyde group. The condensing may be carried out in an organic solvent, preferably in the presence of an acid. The bacteriochlorins are useful for a variety of purposes such as active agents in photodynamic therapy, luminescent compounds in flow cytometry, solar cells, light harvesting arrays, and molecular memory devices.

An electro-polarizable compound has the following general formula:

##STR00001##

Core1 is an aromatic polycyclic conjugated molecule having two-dimensional teat form and self-assembling by pi-pi stacking in a column-like supramolecule, R1 is a dopant group connected to Core1; a number m of R1 groups is 1, 2, 3 or 4. R2 is a substituent comprising one or more ionic groups connected to Core1; a number p of ionic groups R2 is 0, 1, 2, 3 or 4. The fragment marked NLE has a nonlinear polarization effect. Core2 is an electro-conductive oligomer self-assembling by pi-pi stacking in a column-like supramolecule, a number n of such oligomers is 0, 2, or 4. R3 is a substituent comprising one or more ionic groups connected to Core2; a number s of the ionic groups R3 is 0, 1, 2, 3 or 4. R4 is a resistive substituent providing solubility of the compound in a solvent and electrically insulating the column-like supramolecules from each other. A number k of substituents R4 is 0, 1, 2, 3, 4, 5, 6, 7 or 8.

A system is provided comprising an optical filter. The optical filter comprises a Cu-porphyrin dye compound. The transmission spectrum of the system has an average transmission across the wavelength range of 460 nm-700 nm of at least 60%. The transmission spectrum of the system has an average transmission across the wavelength range 400 nm-460 nm that is less than 75%.

A system is provided comprising an optical filter. The optical filter comprises a Cu-porphyrin dye compound. The transmission spectrum of the system has an average transmission across the wavelength range of 460 nm-700 nm of at least 60%. The transmission spectrum of the system has an average transmission across the wavelength range 400 nm-460 nm that is less than 75%.

The present disclosure relates to a compound of general Formula (1) which can be used as an electrode material, an electrode comprising said compound, and a battery cell comprising at least one of said electrode.

##STR00001##

wherein M is selected from the group consisting of a transition metal ion, preferably selected from the group consisting of Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Mo, Ru, Rh, Pd, Ag, W, Re, Os, Ir, Pt, and Au, an alkaline earth metal ion, preferably selected from the group consisting of Mg and Ca, a p-block element ion, preferably selected from the group consisting of B, Al, Ga, In, Si, Ge, Sn, Pb, As, Sb, Bi, Se, and Te, and a lanthanide ion, preferably selected from the group consisting of La, Ce, Sm, and Eu, R.sup.1 to R.sup.4 and X.sup.1 to X.sup.8 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, a halogen atom, —NZ.sup.1Z.sup.2, —NO.sub.2, —CN, —OZ.sup.3, —C(O)Z.sup.4, —C(O)NZ.sup.5Z.sup.6, and —COOZ.sup.7, wherein at least one of R.sup.1 to R.sup.4 is an alkynyl group, Z.sup.1 to Z.sup.7 are each independently selected from a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, and a halogen atom, and wherein the alkyl groups, the alkenyl groups, the alkynyl groups, the aryl groups, and the heteroaryl groups are each independently substituted or unsubstituted.