The present disclosure aims to provide a novel method for lowering the concentrations of dimethylamine, diethylamine, ethylpropylamine, and ethylisopropylamine in a crude trialkylamine. The present disclosure relates to a method for purifying a trialkylamine, including contacting a crude trialkylamine containing at least one impurity selected from the group consisting of dimethylamine, diethylamine, ethylpropylamine, and ethylisopropylamine with a zeolite to lower a concentration of the at least one impurity selected from the group consisting of dimethylamine, diethylamine, ethylpropylamine, and ethylisopropylamine in the crude trialkylamine than the concentration before contacting with the zeolite.

The invention generally involves combining specialty amines with herbicidal carboxylic acids to form a new generation of salts with improved characteristics. The salts contain a cation of an amine and an anion of a carboxylic acid herbicide. The amine is advantageously selected from mono-isobutylamine (MIBA), N-methylaminoethanol (MMEA), dimethylaminopropylamine (DMAPA), 2-dimethylaminoethanol (DMAE), methyldiethanolamine (MDEA), and 1,2-diaminopropane (1,2-DAP). The amine-herbicide combinations may possess one or more improved characteristics, including maximum loading, wettability, drift, viscosity, and volatilization.

The invention generally involves combining specialty amines with herbicidal carboxylic acids to form a new generation of salts with improved characteristics. The salts contain a cation of an amine and an anion of a carboxylic acid herbicide. The amine is advantageously selected from mono-isobutylamine (MIBA), N-methylaminoethanol (MMEA), dimethylaminopropylamine (DMAPA), 2-dimethylaminoethanol (DMAE), methyldiethanolamine (MDEA), and 1,2-diaminopropane (1,2-DAP). The amine-herbicide combinations may possess one or more improved characteristics, including maximum loading, wettability, drift, viscosity, and volatilization.

A method for preparing an anionic polymerization initiator, a device for manufacturing the same, and an anionic polymerization initiator prepared therefrom is provided. And the method for preparing an anionic polymerization initiator according to the present invention is characterized in that in a continuous reactor an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.

The present disclosure relates to a composition that includes a perovskite crystal having a ferroelectric domain aligned substantially parallel to a reference axis. In some embodiments of the present disclosure, the perovskite crystal may include ABX.sub.3, where A is a first cation, B is a second cation, and X is an anion. In some embodiments of the present disclosure, A may include an alkyl ammonium cation. In some embodiments of the present disclosure, B may include a metal element. In some embodiments of the present disclosure, the metal element may include lead. In some embodiments of the present disclosure, X may include a halogen. In some embodiments of the present disclosure, the perovskite crystal may include methylammonium lead iodide.

The present disclosure relates to a composition that includes a perovskite crystal having a ferroelectric domain aligned substantially parallel to a reference axis. In some embodiments of the present disclosure, the perovskite crystal may include ABX.sub.3, where A is a first cation, B is a second cation, and X is an anion. In some embodiments of the present disclosure, A may include an alkyl ammonium cation. In some embodiments of the present disclosure, B may include a metal element. In some embodiments of the present disclosure, the metal element may include lead. In some embodiments of the present disclosure, X may include a halogen. In some embodiments of the present disclosure, the perovskite crystal may include methylammonium lead iodide.

Disclosed herein are clusters compounds that include at least one substituted amine sulfate and at least one substituted amine bisulfate molecule. The substituted amine sulfate molecule and the substituted amine bisulfate molecule may each include an ammonium moiety with at least one alkyl substituent. Optionally, the alkyl substituent can include 1 to 20 carbon atoms, 1 to 10 carbon atoms, or 1 to 6 carbon atoms. For example, the alkyl substituent can be a methyl, ethyl, propyl, butyl, or pentyl group. In some examples, the substituted amine sulfate molecule and the substituted amine bisulfate molecule each include an ammonium moiety with at least two alkyl substituents. Optionally, the two alkyl substituents are the same. Alternatively, however, the two alkyl substituents can be different.

Disclosed herein are clusters compounds that include at least one substituted amine sulfate and at least one substituted amine bisulfate molecule. The substituted amine sulfate molecule and the substituted amine bisulfate molecule may each include an ammonium moiety with at least one alkyl substituent. Optionally, the alkyl substituent can include 1 to 20 carbon atoms, 1 to 10 carbon atoms, or 1 to 6 carbon atoms. For example, the alkyl substituent can be a methyl, ethyl, propyl, butyl, or pentyl group. In some examples, the substituted amine sulfate molecule and the substituted amine bisulfate molecule each include an ammonium moiety with at least two alkyl substituents. Optionally, the two alkyl substituents are the same. Alternatively, however, the two alkyl substituents can be different.

The present invention relates to compounds characterized by having a structure according to the following Formula I: ##STR00001##
or a pharmaceutically acceptable salt thereof. Compounds of the present invention are useful for the treatment or prevention of HIV.

A mononuclear iron bivalent complex having iron-silicon bonds, which is represented by formula (1), can exhibit an excellent catalytic activity in at least one reaction selected from three reactions, i.e., a hydrosilylation reaction, a hydrogenation reaction and a reaction for reducing a carbonyl compound.

##STR00001##

(In the formula, R.sup.1 to R.sup.6 independently represent a hydrogen atom, an alkyl group which may be substituted by X, or the like; X represents a halogen atom, or the like; L.sup.1 represents at least one two-electron ligand selected from an isonitrile ligand, an amine ligand, an imine ligand, a nitrogenated heterocyclic ring, a phosphine ligand, a phosphite ligand and a sulfide ligand, wherein, when multiple L.sup.1's are present, two L.sup.1's may be bonded to each other; L.sup.2 represents a two-electron ligand that is different from a CO ligand or the above-mentioned L.sup.1, wherein, when multiple L.sup.2's are present, two L.sup.2's may be bonded to each other; and m.sup.1 represents an integer of 1 to 4 and m.sup.2 represents an integer of 0 to 3, wherein the sum total of m.sup.1 and m.sup.2 (i.e., m.sup.1+m.sup.2) satisfies 3 or 4.)