|
Azanes are saturated hydronitrogens, which means that they consist only of hydrogen and nitrogen atoms and all bonds are single bonds. By definition, cycles are excluded, so that the azanes comprise a homologous series of inorganic compounds with the general chemical formula . Each nitrogen atom has three bonds (either N-H or N-N bonds), and each hydrogen atom is joined to a nitrogen atom (H-N bonds). A series of linked nitrogen atoms is known as the nitrogen skeleton or nitrogen backbone. The number of nitrogen atoms is used to define the size of the azane (e.g. N2-azane). The simplest possible azane (the parent molecule) is ammonia, . There is no limit to the number of nitrogen atoms that can be linked together, the only limitation being that the molecule is acyclic, is saturated, and is a hydronitrogen. Azanes are reactive and have significant biological activity. Azanes can be viewed as a more biologically active or reactive portion (functional groups) of the molecule, which can be hung upon molecular trees. ==Structure classification== Saturated hydronitrogens can be: *linear (general formula ) wherein the nitrogen atoms are joined in a snakelike structure *branched (general formula , ''n'' > 3) wherein the nitrogen backbone splits off in one or more directions *cyclic (general formula , ''n'' > 2) wherein the nitrogen backbone is linked so as to form a loop. According to IUPAC definitions, the former two are azanes, whereas the third group is called cycloazanes. Saturated hydronitrogens can also combine any of the linear, cyclic (e.g. polycyclic), and branching structures, and they are still azanes (no general formula) as long as they are acyclic (i.e., having no loops). They also have single covalent bonds between their nitrogens. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Azane」の詳細全文を読む スポンサード リンク
|