Centre for Organic Electronics, Chemistry Building, The University of Newcastle, NSW 2308, Callaghan, Australia.
Phys Chem Chem Phys. 2011 Aug 14;13(30):13544-51. doi: 10.1039/c1cp21080g. Epub 2011 Jun 9.
The bulk structure of the ionic liquid propylammonium nitrate (PAN) has been determined using neutron diffraction. Empirical potential structure refinement (EPSR) fits to the data show that PAN self-assembles into a quasi-periodic bicontinuous nanostructure reminiscent of an amphiphile L(3)-sponge phase. Atomic detail on the ion arrangements around the propylammonium cation and nitrate anion yields evidence of hydrogen bonding between ammonium and nitrate groups and of strong alkyl chain aggregation and interdigitation. The resultant amphiphilic PAN nanostructure is more pronounced than that previously determined for ethylammonium nitrate (EAN) or ethanolammonium nitrate (EtAN).
使用中子衍射法确定了离子液体丙基硝酸铵（PAN）的体相结构。对数据的经验势结构精修（EPSR）表明，PAN 自组装成准周期性双连续纳米结构，类似于两亲物 L(3)-海绵相。围绕丙基铵阳离子和硝酸根阴离子的离子排列的原子细节提供了铵基和硝酸根基团之间氢键以及强烷基链聚集和互贯的证据。所得的两亲 PAN 纳米结构比先前确定的乙基硝酸铵（EAN）或乙醇硝酸铵（EtAN）更为明显。
