phosphorus dihydride | 13765-43-0

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 均质其他非金属化合物
• 英文名称: phosphorus dihydride
• 英文别名: Phosphino
• CAS: 13765-43-0
• 化学式: H₂P
• 分子量: 32.9896
• InChiKey: FVZVCSNXTFCBQU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  1
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  phosphorus dihydride 在 氮气 作用下， 以 gas 为溶剂， 生成 二膦 、 膦基自由基 、 phosphan
  参考文献：
  名称：

  Zakhar'in, V. I.; Nadtochenko, V. A.; Sarkisov, O. M., Doklady Physical Chemistry, 1982, vol. 263, p. 168 - 170

  摘要：

  DOI：
• 作为产物：
  描述：

  phosphan 以 gaseous matrix 为溶剂， 生成 phosphorus dihydride
  参考文献：
  名称：

  超声射流冷却的PH 2的激光诱导荧光光谱

  摘要：

  在超音速射流中冷却的气相PH 2的激光诱导荧光光谱已观察到在490-550 nm范围内。对（0，0，0）-（0，0，0），（0，1，0）-（0，0，0）和（0，2，0）-（0进行旋转分析，0，0）PH 2的A 2 A 1 -X 2 B 1电子跃迁的能带。大约分配了220条线路，其中首次包括52条线路。从光谱的旋转结构中，我们获得了PH 2的所有分子常数，包括bb bb和ϵ cc这是第一个报告的。讨论了在电子激发状态下存在的旋转扰动。

  DOI：

  10.1016/0009-2614(94)00405-6

文献信息

• Overall Considerations on the Quenching of PH₂(òA₁) and New Effects in Collision-Induced V−V Energy Transfer of PH₂(X̃²B₁; <i>v</i>₂‘ ‘ = 1)
  作者：Chieu Nguyen Xuan

  DOI：10.1021/jp065077+

  日期：2007.5.1

  The quenching constants of PH2(A(1)(2); v(2)' = 0 and 1) by H2S, NH3, COS, CHCl3, and CH4 have been measured. Attempts to correlate these data and those published in previous papers due to other quenchers, with the molecular properties through the Parmenter and co-workers' theory, the Thayer and Yardley's model, and the collision complex formation theory have been made. Measurements of collision-induced deactivation constants of PH2((XB1)-B-2; v(2)' ' = 1) by COS, CHCl3, and CH4 have also been carried out. A reliable linear relationship of the log values of V-V energy exchange probability with the minimum energy mismatch Delta nu between PH2(v(2)' ' = 1) and the quenchers has been shown. Effects on the V-V transfer efficiency by inversion doubling of NH3 and by the degenerate vibrational modes of the quencher, which participate in the process, have been evidenced.
• Xuan, Chieu Nguyen; Tamanini, Massimo; Stefano, Giorgio Di, Gazzetta Chimica Italiana, 1986, vol. 116, # 5, p. 243 - 254
  作者：Xuan, Chieu Nguyen、Tamanini, Massimo、Stefano, Giorgio Di、Margani, Alessandro

  DOI：——

  日期：——
• PH₂internal energy distribution produced by the 193 nm photodissociation of PH₃
  作者：D. Baugh、B. Koplitz、Z. Xu、C. Wittig

  DOI：10.1063/1.454167

  日期：1988.1.15

  Experimental results involving 193 nm PH3 photodissociation are reported. Detection of the PH2 fragment using laser induced fluorescence suggests that PH2 is formed with appreciable internal excitation, but no quantitative results concerning nascent PH2 could be obtained using this direct method. In related kinetics studies, the reaction of thermalized (300 K) PH2 with O2 yields a rate coefficient of 2.7×10−13 cm3 molecule−1 s−1, while PH2+NO is rather unreactive (k&lt;10−14 cm3 molecule−1 s−1). In separate experiments, sub-Doppler spectroscopy on the H-atom fragment at Lyman-α (121.6 nm) allowed the center-of-mass kinetic energy distribution to be extracted; the PH2 internal energy distribution was obtained using energy conservation. Most of the available energy (E° ≂hν−D0=22 000 cm−1) appears as PH2 internal excitation; the mean internal energy is 14 000 cm−1 and the distribution peaks at ∼19 000 cm−1. The experimental distribution compares favorably with a simple statistical (prior) calculation, and the agreement is discussed in terms of possible photodissociation mechanisms.
• Collision induced deactivation of the bending mode v=1 vibrational level of the excited Ã 2A1 and ground X̃ 2B1 electronic states of PH2 by rare gases
  作者：Chieu Nguyen Xuan、Alessandro Margani、Marcello Mastropietro

  DOI：10.1063/1.473905

  日期：1997.5.22

  Collisional deactivation of the vibrational level v=1 of the bending mode by rare gases has been studied for both the excited Ã 2A1 and ground X̃ 2B1 electronic states of PH2. Quenching constants have been determined. While a non-SSH behavior has been observed in the dependence of the relaxation probability upon the mass of the collision partner in the ground state denoting a possible predominance of an intramolecular V–R energy transfer process, the cross sections fit quite well the Parmenter and co-workers’ potential well depth correlation rule for both the electronic states indicating that their interactions with the quenchers occur for both of them under the influence of long range attractive forces.
• Dynamics and spectroscopy of higher bending vibrational levels of PH₂(<i>A</i>̃ ²<i>A</i>₁)
  作者：Chieu Nguyen Xuan、Alessandro Margani

  DOI：10.1063/1.466901

  日期：1994.5.15

  The zero-pressure lifetimes of the bending vibrational levels from v2′ = 5,6, and 7 of PH2(Ã 2A1) have been measured and are found to be 720, 35 (PQ1), 26 (PP1), and 3 ns, respectively. The self-quenching constants are (11.0 ± 0.9)×10−10 cm3 molecule −1 s−1 for v2′ = 5 and (7.4 ± 1.4) [PQ1] and (7.7 ± 1.4) [PP1]×10−10 cm3 molecule−1 s−1 for v2′ = 6. Evidence of predissociation of PH2(Ã 2A1) is shown by the sudden drop of its lifetime at v2′ = 6, which however should start at v2′ = 4. A model of indirect predissociation mechanism has been proposed. Composite emissions due to simultaneous excitation of v2′ = 5 and v2′ = 6 and resulting in biexponential fluorescence decay curves have been identified in the laser-induced fluorescence (LIF) excitation spectrum of v2′ = 5 where the spectroscopic assignment concerning some rotational lines and reported in literature has also been found to likely be incorrect. Besides, the origin of some unassigned peaks recorded in the same spectrum has been found, through fluorescence decay studies, to itself be v2′ = 5.