quaternary onium salts

См. также в других словарях:

• Onium compounds — are cations derived by the protonation of mononuclear parent hydrides of elements of the nitrogen group (Group 15), chalcogens (Group 16), or halogens (Group 17), and similar cations derived by the substitution of hydrogen atoms in the former by… …   Wikipedia

• Quaternary ammonium muscle relaxants — are quaternary ammonium salts used as drugs for muscle relaxation, most commonly in anasthesia. It is necessary to prevent spontaneous movement of muscle during surgical operations. Muscle relaxants inhibit neuron transmission to muscle by… …   Wikipedia

• Neuromuscular-blocking drug — Global view of a neuromuscular junction: 1. Axon 2. Motor end plate 3. Muscle fiber 4. Myofibril …   Wikipedia

• Ионная жидкость — Формула 1 бутил 3 метилимидазолий гексафторфосфата [bmim]PF6, одной из самых распространённых ионных жидкостей Ионная жидкость  жидкость, содержащая только ионы. В широком смысле этого понятия ионные жидкости  это любые …   Википедия

• Ammonium — This article is about the cation. For the ancient city, see Siwa Oasis. The NH4+ ion …   Wikipedia

• methonium — mə̇ˈthōnēəm noun ( s) Etymology: New Latin, from meth + onium : any of several bivalent doubled substituted ammonium ions (as decamethonium or hexamethonium) in which the two quaternary nitrogen atoms are separated by a polymethylene chain… …   Useful english dictionary

• phosphonium — fäˈsfōnēəm noun ( s) Etymology: New Latin, from phosph + onium : a univalent ion PH4+ or radical PH4 analogous to ammonium that is derived from phosphine and is known especially in the form of salts (as phosphonium iodide PH4I) and organic… …   Useful english dictionary