Ammonium Cyanate Shows N−H···N Hydrogen Bonding, Not N−H···O
The transformation of ammonium cyanate into urea, first studied over 170 years ago by Wöhler and Liebig, has an important place in the history of chemistry. To understand the nature of this solid state reaction, knowledge of the crystal structure of ammonium cyanate is a prerequisite. Employing neut...
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| Veröffentlicht in: | Journal of the American Chemical Society 2003-11, Vol.125 (47), p.14449-14451 |
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| container_issue | 47 |
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| container_title | Journal of the American Chemical Society |
| container_volume | 125 |
| creator | MacLean, Elizabeth J Harris, Kenneth D. M Kariuki, Benson M Kitchin, Simon J Tykwinski, Rik R Swainson, Ian P Dunitz, Jack D |
| description | The transformation of ammonium cyanate into urea, first studied over 170 years ago by Wöhler and Liebig, has an important place in the history of chemistry. To understand the nature of this solid state reaction, knowledge of the crystal structure of ammonium cyanate is a prerequisite. Employing neutron powder diffraction, we demonstrate conclusively that, in the structure of ammonium cyanate, the NH4 + cation forms N−H···N hydrogen bonds to four cyanate N atoms at alternate corners of a distorted cube, rather than our previously proposed alternative arrangement with N−H···O hydrogen bonds to cyanate O atoms at the other four corners. |
| doi_str_mv | 10.1021/ja021156x |
| format | Article |
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Soc</addtitle><date>2003-11-26</date><risdate>2003</risdate><volume>125</volume><issue>47</issue><spage>14449</spage><epage>14451</epage><pages>14449-14451</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><abstract>The transformation of ammonium cyanate into urea, first studied over 170 years ago by Wöhler and Liebig, has an important place in the history of chemistry. To understand the nature of this solid state reaction, knowledge of the crystal structure of ammonium cyanate is a prerequisite. Employing neutron powder diffraction, we demonstrate conclusively that, in the structure of ammonium cyanate, the NH4 + cation forms N−H···N hydrogen bonds to four cyanate N atoms at alternate corners of a distorted cube, rather than our previously proposed alternative arrangement with N−H···O hydrogen bonds to cyanate O atoms at the other four corners.</abstract><pub>American Chemical Society</pub><doi>10.1021/ja021156x</doi><tpages>3</tpages></addata></record> |
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| ispartof | Journal of the American Chemical Society, 2003-11, Vol.125 (47), p.14449-14451 |
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| language | eng |
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| source | ACS Publications |
| title | Ammonium Cyanate Shows N−H···N Hydrogen Bonding, Not N−H···O |
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