electron-pair bond
111Cyanate — Not to be confused with fulminate. Space filling model of the cyanate anion. The cyanate ion is an anion with the chemical formula written as [OCN]− or [NCO]−. In aqueous solution it acts as a base, forming isocyanic acid, HNCO. The cyanate ion… …
112bonding — /bon ding/, n. 1. Psychol., Animal Behav. a. a relationship that usually begins at the time of birth between a parent and offspring and that establishes the basis for an ongoing mutual attachment. b. the establishment of a pair bond. 2. a close… …
113Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water …
114Brønsted–Lowry acid-base theory — In chemistry, the Brønsted–Lowry acid base theory is an acid base theory. It was proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923. In this system, an acid is defined as any chemical species (molecule or ion)… …
115Alpha effect — The alpha effect refers to the increased nucleophilicity of a molecule due to the presence of an adjacent (alpha) atom with lone pair electrons [Chemical Reactivity . 14 July 2006. Michigan State University. 27 Jul 2006 .] . The molecule does not …
116Brønsted–Lowry acid–base theory — In chemistry, the Brønsted–Lowry theory is an acid base theory, proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.[1][2] In this system, Brønsted acids and Brønsted bases are defined, by which an acid is a… …
117Alkyne — Alkynes are hydrocarbons that have at least one triple bond between two carbon atoms, with the formula CnH2n 2. The alkynes are traditionally known as acetylenes or the acetylene series, although the name acetylene is also used to refer… …
118Ziegler–Natta catalyst — A Ziegler–Natta catalyst is a catalyst used in the synthesis of polymers of 1 alkenes (α olefins). Three types of Ziegler–Natta catalysts are currently employed: Solid and supported catalysts based on titanium compounds. They are used in… …
119Oxymercuration reaction — Oxymercuration reduction [1] The oxymercuration reaction is an electrophilic addition organic reaction that transforms an alkene into a neutral alcohol. In oxymercuration, the alkene reacts with mercuric acetate (AcO Hg OAc) in aqueous solution… …
120nucleophile — [no͞o′klē ə fīl΄, nyo͞o′klē ə fīl΄] n. 〚 NUCLEO + PHILE〛 an atom or molecule that has an affinity for atomic nuclei or that donates electrons to form a covalent bond nucleophilic [no͞o′klē əfil′ik, nyo͞o′klē əfil′ik] adj. * * * nu·cle·o·phile… …
