%0 Journal Article
%T Lattice potential energy and standard molar enthalpy in the formation of 1–dodecylamine hydrobromide (1–C12H25NH3·Br)(s)
%A 刘玉普
%A 邸友莹
%A 淡文彦
%A 何东华
%A 孔玉霞
%A 杨伟伟
%J 中国物理 B
%D 2011
%I 
%X This paper reports that 1-dodecylamine hydrobromide (1--C12H25NH3·Br)(s) has been synthesized using the liquid phase reaction method. The lattice potential energy of the compound 1--C12H25NH3·Br and the ionic volume and radius of the 1--C12H25NH3+ cation are obtained from the crystallographic data and other auxiliary thermodynamic data. The constant-volume energy of combustion of 1--C12H25NH3·Br(s) is measured to be Δc Umo(1--C12H25NH3·Br, s) =--(7369.03±3.28) kJ·mol-1 by means of an RBC-II precision rotating-bomb combustion calorimeter at T=(298.15±0.001) K. The standard molar enthalpy of combustion of the compound is derived to be Δc Hmo(1--C12H25NH3·Br, s)=--(7384.52±3.28) kJ·mol - 1 from the constant-volume energy of combustion. The standard molar enthalpy of formation of the compound is calculated to be Δf Hmo(1--C12H25NH3·Br, s)=--(1317.86±3.67) kJ·mol-1 from the standard molar enthalpy of combustion of the title compound and other auxiliary thermodynamic quantities through a thermochemical cycle.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=9D15A3DC193F5CA02AD343333746B6E2&yid=9377ED8094509821&vid=A04140E723CB732E&iid=0B39A22176CE99FB&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=22