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Together with the consonants (mei, which are called 'body' letters), they form compound, syllabic letters that are called 'living' or 'embodied' letters (uyir mei, i.e. letters that have both 'body' and 'soul'). Tamil language has 12 vowels which are divided into short and long (five of each type) and two diphthongs.
The structure of the molecule of urea is O=C(−NH 2) 2.The urea molecule is planar when in a solid crystal because of sp 2 hybridization of the N orbitals. [8] [9] It is non-planar with C 2 symmetry when in the gas phase [10] or in aqueous solution, [9] with C–N–H and H–N–H bond angles that are intermediate between the trigonal planar angle of 120° and the tetrahedral angle of 109.5°.
In chemistry, the amino radical, ·NH2, also known as the aminyl or azanyl, is the neutral form of the amide ion (NH− 2). Aminyl radicals are highly reactive and consequently short-lived, like most radicals; however, they form an important part of nitrogen chemistry. In sufficiently high concentration, amino radicals dimerise to form hydrazine.
Guanidine is the compound with the formula HNC (NH 2) 2. It is a colourless solid that dissolves in polar solvents. It is a strong base that is used in the production of plastics and explosives. It is found in urine predominantly in patients experiencing renal failure. [4]
A cobalt(III) complex of aminomethyl is known in the form [Co 2 (CH 2 NH 2)](ClO4) 2. [1] Aminomethyl is the first member of a series of 1-aminoalkyl groups of the form −(CH 2 −) n NH 2. [2] Aminomethyl is used in the standard names of some compounds, [3] such as 4-(aminomethyl) benzoic acid.
NH2. NH2 or similar may refer to: Azanide (chemical formula NH−2) Amino radical (chemical formula NH•2) Nitrenium ion (chemical formula NH+2) Primary amide group (chemical formula -NH2) National Harbor–Alexandria Line (Route NH2), a WMATA bus line between Alexandria, Virginia and Prince George's County, Maryland. National Highway 2 (India)
ä அ. äː ஆ. Tamil has two diphthongs: /aɪ̯/ ஐ and /aʊ̯/ ஔ, the latter of which is restricted to a few lexical items. Some like Krishnamurti consider the diphthongs as clusters of /a/ + /j, ʋ/ as they pattern with other VC. [3] The way some words are written also varies e.g. avvai as அவ்வை (avvai), ஔவை (auvai) or ...
Tobias acid (2-amino-1-naphthalenesulfonic acid) is an organic compound with the formula C 10 H 6 (SO 3 H)(NH 2). It is named after the German chemist Georg Tobias. [ 1 ] It is one of several aminonaphthalenesulfonic acids , which are derivatives of naphthalene containing both amine and sulfonic acid functional groups.