二磷
| 二磷 | |||
|---|---|---|---|
| |||
| IUPAC名 Diphosphorus | |||
| 系统名 Diphosphyne[1] | |||
| 识别 | |||
| CAS号 | 12185-09-0 
| ||
| PubChem | 5460700 | ||
| ChemSpider | 4574176 | ||
| SMILES |
| ||
| InChI |
| ||
| InChIKey | FOBPTJZYDGNHLR-UHFFFAOYAU | ||
| Gmelin | 1400241 | ||
| ChEBI | 33472 | ||
| 性质 | |||
| 化学式 | P2 | ||
| 摩尔质量 | 61.95 g·mol−1 | ||
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | |||
二磷是一种无机化合物，化学式P
2。磷之上的氮會形成有氮氮三键的N2分子，而磷傾向於形成P4，因为P-Pπ键的能量很高。二磷的结构类似氮气，但反应性很高，键解离能为（117 kcal/mol或490kJ/mol）氮气的一半。二磷的键长为1.8934 Å。[2]
制备
[编辑]将白磷加热至1100 °K（827 °C）可取得二磷。然而，通过一些过渡金属配合物（例如基于钨和铌的配合物），在正常条件下的均相溶液中生成二磷的方面已经取得了一些进展。[3]离解P4分子中的键的方法也被提出过，比如光激发。[4]
参考资料
[编辑]- ^ Diphosphorus (CHEBI:33472). Chemical Entities of Biological Interest (ChEBI). UK: European Bioinformatics Institute. [2021-01-01]. （原始内容存档于2016-03-04）.
- ^ Huber, K. P.; Herzberg, G. Molecular Spectra and Molecular Structure IV. Constants of Diatomic Molecules. New York: Van Nostrand. 1979. ISBN 978-0442233945.
- ^ Piro, Nicholas A.; Figueroa, Joshua S.; McKellar, Jessica T.; Cumnins, Christopher C. Triple-Bond Reactivity of Diphosphorus Molecules. Science. 1 September 2006, 313 (5791): 1276–1279. Bibcode:2006Sci...313.1276P. PMID 16946068. S2CID 27740669. doi:10.1126/science.1129630.
- ^ Lee-Ping Wangb; Daniel Tofana; Jiahao Chena; Troy Van Voorhisa & Christopher C. Cummins. A pathway to diphosphorus from the dissociation of photoexcited tetraphosphorus. RSC Advances (Royal Society of Chemistry). September 2013 [2017-07-21]. （原始内容存档于2017-07-21）. （页面存档备份，存于互联网档案馆）
外部链接
[编辑]- Ron Dagani, "A Mild Route To P2", Chemical & Engineering News September 4, 2006 Link （页面存档备份，存于互联网档案馆）
- Carmen Drahl "Flash Of Phosphorus Chemistry Innovation", Chemical & Engineering News September 13, 2010 Link
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