The present disclosure includes a method of obtaining an alkyltintrihalide, obtaining a solvent, and contacting the alkyltintrihalide and the solvent, thereby forming an alkyltintrihalide adduct. Also described is a composition including: an alkyltintrihalide adduct of the formula: RSnX.sub.3.Math.(solv).sub.n, wherein: R is a substituted C.sub.1-C.sub.5 alkyl, an unsubstituted C.sub.1-C.sub.5 alkyl, a substituted C.sub.1-C.sub.5 alkenyl, or an unsubstituted C.sub.1-C.sub.5 alkenyl; X is Cl, Br, or I; solv is a solvent; and n is at least 1.

Provided are an organometallic halide compound represented by Formula 1 and having a zero-dimensional non-perovskite structure, and a light-emitting device, an optical member, and an apparatus, each including the organometallic halide compound. The light-emitting device may include a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode, where the emission layer includes the organometallic halide compound.

A semiconductor photoresist composition includes an organometallic compound represented by Chemical Formula 1, a photoacid generator (PAG), and a solvent:

##STR00001##

In Chemical Formula 1, R is a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C2 to C20 aliphatic unsaturated organic group including at least one double bond or triple bond, a substituted or unsubstituted C6 to C30 aryl group, an ethoxy group, a propoxy group, or a combination thereof; and X, Y, and Z are each independently —OR.sup.1 or —OC(═O)R.sup.2.

Compounds according to general formula (I)

##STR00001##

in which M is Ge or Sn, RAr is

##STR00002##

R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, independently of one another in each case, are —H, —F, —Cl, —OR.sup.6, —SR.sup.6, —N(R.sup.6).sub.2, —CF.sub.3, —CN, —NO.sub.2, —COOR.sup.6, —CONHR.sup.6, a branched, cyclic or preferably linear C.sub.1-20 alkyl, C.sub.2-20 alkenyl, C.sub.1-20 alkyloxy or a C.sub.2-20 alkenoxy radical, which can be interrupted one or more times by O, S or —NR.sup.6— and substituted by one or more polymerizable groups and/or radicals R.sup.6, R.sup.6 is H, a branched, cyclic or preferably linear C.sub.1-20 alkyl or C.sub.2-20 alkenyl radical, R.sup.7 is a chemical bond, an n-valent aromatic radical or a branched, cyclic or preferably linear C.sub.1-20 alkylene radical, which can be interrupted one or more times by O, S or —NR.sup.6— and substituted by one or more polymerizable groups, ═O and/or radicals R.sup.6, n is 2 or 3 and m is 0 or 1. The compounds are particularly suitable as photoinitiators for radical polymerization and in particular for the production of dental materials.

A metal tin cyclized perylene diimide derivative, having a structure formula of:

##STR00001##

where R.sub.1 and R.sub.2 are each independently selected from a hydrogen atom or a group containing or not containing a substituent. The group containing or not containing a substituent is an alkyl having between 1 and 60 carbon atoms, an alkoxy having between 1 and 60 carbon atoms, a cycloalkyl having between 3 and 60 carbon atoms, an aryl having between 5 and 60 atoms, an alkylaryl having between 1 and 60 carbon atoms, an alkylheteroaryl having between 1 and 60 carbon atoms, an alkylheterocyclyl having between 1 and 60 carbon atoms, an alkyleneoxyalkyl having between 1 and 60 carbon atoms, an alkyleneoxyaryl having between 1 and 60 carbon atoms, an alkyleneoxyheteroaryl having between 1 and 60 carbon atoms, or an alkyleneoxyheterocyclyl having between 1 and 60 carbon atoms.

The present disclosure relates to a composition that includes a perovskite of A.sub.2BX.sub.4, where A includes an R-form of a chiral molecule of at least one of

##STR00001##

and/or an S-form of the chiral molecule, B includes a cation, X includes an anion, R.sub.1 includes a first carbon chain having between 2 and 5 carbon atoms, R.sub.2 includes at least one of a hydrogen atom, a halogen atom, a carboxylic acid group, an alkoxy group, and/or a second carbon chain, and R.sub.3 includes a third carbon chain.

The present technology is directed to compounds, compositions, medicaments, and methods related to the treatment of cancers expressing PSMA. The compounds are of Formulas I & II

##STR00001##

or pharmaceutically acceptable salts thereof. The present technology is especially well-suited for use in treating prostate cancer.

The present invention relates to a novel photoacid generator compound cation, comprising an element having for 92 eV photons (extreme ultraviolet (EUV)) an absorption cross section of at least 0.5×10.sup.7.Math.cm.sup.2/mol; having at least two stable oxidation states; and selected from the elements of group 1 to group 15 of the periodic table of the elements. Additionally, the present invention relates to a photoacid generator comprising said photoacid generator compound cation and an anion. Furthermore, the present invention aims to provide a photoresist composition comprising said photoacid generator and an acid labile polymer. Finally, the present invention relates to a method of generating an acid using the photoresist composition and a method of forming a patterned materials feature on a substrate.

The invention relates to novel spiroketal antioxidants, including compounds of Formula (I) and (II). The compounds have antioxidant properties and are useful for the treatment and/or prevention of diseases and conditions associated with oxidative stress in the body (e.g., metabolic conditions, neurodegenerative diseases, cardiovascular diseases, inflammatory diseases, autoimmune diseases, proliferative diseases, renal diseases). The invention provides pharmaceutical compositions comprising the compounds, and kits comprising the same. Additionally, the invention provides uses of the compounds described herein (e.g., for inhibiting the concentration or production of reactive oxygen species (ROS), inhibiting the concentration or production of reactive nitrogen species (RNS), reducing oxidative stress, inhibiting NADPH oxidase activity, and for slowing or reducing the effects of aging).

##STR00001##

Methods of making metal halide perovskites, including methods of making micro crystals of metal halide perovskites. The metal halide perovskites, including the micro crystals, may have a 0D structure. The metal halide perovskites may be a light emitting material.