diazodiazonium | 406217-85-4

• 英文名称: diazodiazonium
• CAS: 406217-85-4
• 化学式: N₄
• 分子量: 56.0268
• InChiKey: ZVEWYRGWFNRYHT-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  diazodiazonium 在 氧气 作用下， 以 gas 为溶剂， 生成 氮
  参考文献：
  名称：

  Temperature dependence of reactions of N⁺₄ and N⁺₃ with O₂ in the range 552–64 K

  摘要：

  The rate constants for the reactions of N+4 and N+3 with O2 in a few Torr of nitrogen have been studied in the temperature range of 552–64 K with a pulsed electron-beam high-pressure mass spectrometer. A steep increase of the rate constants for both reactions are observed below ∼160 K. This is due to the participation of higher clusters N+4(N2)n and N+3(N2)n in the reactions. The ratio of the product yield of NO+2 and NO+ from the reaction N+3 +O2 was also measured as a function of temperature. It increases with a decrease in temperature from 0 at 552 K to 7.5 at 64 K.

  DOI：

  10.1063/1.457425
• 作为产物：
  描述：

  氮 在 Al or Ca 、 O₂ or B₂H₆ 作用下， 以 solid matrix 为溶剂， 生成 diazodiazonium
  参考文献：
  名称：

  ESR andabinitiotheoretical studies of the cation radicals¹⁴N⁺₄and¹⁵N⁺₄: The trapping of ion–neutral reaction products in neon matrices at 4 K

  摘要：

  The 14N+4 and 15N+4 molecular cation radicals have been generated by the ion–neutral reaction N+2 +N2 and isolated in solid neon matrices at 4 K for detailed ESR (electron spin resonance) investigation. Both photonionization at 16.8 eV and electron bombardment (50 eV) were used in conjunction with the neon matrix trapping technique to produce the N+4 dimer cation. The ESR results clearly show that N+4 is linear and has a 2Σμ ground electronic state. The magnetic parameters in neon are: g∥=2.0016(4) and g⊥=1.9998(2); A∥(14N)=311(1) MHz and A⊥(14N)=264(1) MHz for the central atoms and ‖A∥‖=10.4(5) MHz and ‖A⊥‖=20.4(1) MHz for the outer or terminal 14N atoms. Electronic structure information for N+4 was obtained from the ESR results and compared with ab initio CI calculations. The unpaired electron resides primarily on the inner nitrogen atoms with significant 2pσ and 2s character. Orbital characters obtained from the commonly applied free atom comparison method (FACM) were compared with the results of a Mulliken type spin population analysis conducted on the calculated wave function. The calculated nuclear hyperfine parameters (A tensors) showed reasonable agreement with experiment except for the very small Aiso parameter for the outer nitrogen atoms. Benchmark calculations employing large basis sets were conducted for the free nitrogen atom; these efforts demonstrate the difficulty in computing the Aiso parameter when inner shell effects are important.

  DOI：

  10.1063/1.453243

文献信息

• Temperature dependencies of ternary ion–molecule association reactions yielding N⁺₃, N⁺₄, and (CO)⁺₂
  作者：J. A. Guthrie、R. C. Chaney、A. J. Cunningham

  DOI：10.1063/1.461101

  日期：1991.7.15

  The temperature dependencies of four ternary positive ion–molecule association reactions yielding the products N+3, N+4, and (CO)+2 have been studied using a high pressure pulsed source. The pressure range 0.5 to 4.0 Torr and the temperature range 220 to 500 K were examined. When the experiments were conducted in a pure gas, the third-order rate coefficients were found to follow an overall T−n dependence with 2.1≤n≤2.4. For the case of N+4 formation in a mixture of helium and nitrogen, a power law dependence was not found. The measured pressure and temperature dependencies indicate that the low-pressure limit for all of the reactions extends to neutral number densities as high as 1017 cm−3 throughout the experimental temperature range. The measurements support the existence of a temperature dependence in the stabilization of the intermediate complex for both molecular and atomic third bodies. The results are discussed in light of current models of the ternary association process.
• Study of the reactions N⁺₂+2N₂→N⁺₄+N₂ and O⁺₂+2O₂→O⁺₄+O₂ from 20 to 160 K by the CRESU technique
  作者：B. R. Rowe、G. Dupeyrat、J. B. Marquette、P. Gaucherel

  DOI：10.1063/1.446513

  日期：1984.5.15

  Rate coefficients k1 and k2 have been determined for the association reaction N+2+2 N2→k1N+4+N2 and O+2+2 O2→k2O+4+O2 in the temperature range 20–160 K, using a supersonic jet apparatus (CRESU), which is described in detail. For the highest temperatures where other measurements exist, the measured values of the rate coefficients are in excellent agreement with previous measurements. The temperature dependence of k1 can be represented by a power law of the form k1=6.0×10−29 (300/T)1.85 from 20 K to higher temperatures. For k2, only lower limits for 20 and 45 K are reported but the present data do not confirm the existence of a maximum in k2 as suggested by other authors. These results are examined in the light of recent theoretical arguments.
• Reactions of N⁺₂ and N⁺₄ with O₂ from thermal to 20 eV center of mass
  作者：Richard H. Schultz、P. B. Armentrout

  DOI：10.1063/1.461467

  日期：1991.7

  Reactions of N+2 and N+4 ions with O2 are studied under single-collision conditions in a guided-ion beam mass spectrometer. Reactant ions are formed in a flow tube source to ensure thermalization. N+4 is found to undergo charge transfer to O2 more efficiently than does N+2. The cross section for the latter reaction has a complex shape which is interpreted in terms of vertical transitions to form ground and excited state O+2. For reaction of N+4, the necessity of ligand exchange as an initial step is discussed. Cross sections for several other products, N2O+, O+, NO+, and N+, are measured for the first time in both systems and found to be formed only in endothermic reactions. Evidence is presented that the first three of these products arise from an N2O+ intermediate for both systems. The present results are compared to and contrasted with previous measurements.
• Energy disposal in photodissociation from magic angle measurements with a crossed high‐energy ion beam and laser beam: Photodissociation dynamics of the (N₂)⁺₂ cluster in the 458–514 nm range
  作者：Martin F. Jarrold、Andreas J. Illies、Michael T. Bowers

  DOI：10.1063/1.447365

  日期：1984.7

  The principle behind obtaining photoproduct kinetic energy distributions from magic angle measurements with a crossed high-energy ion beam and laser beam is discussed and the results of an investigation of the photodissociation of the (N2)+2 cluster in the 458–514 nm range are reported. The N+2 product kinetic energy distributions are smooth and peak at relatively large values of kinetic energy (∼0.5 eV). An average product rotational excitation of at least 0.15 eV must occur since the product vibrational states were not resolved. A plot of the average product relative kinetic energy against the available energy is linear and can be accounted for using a simple impulsive model plus vibrational excitation due to geometry changes. The product angular distributions have the form 1+βP2(cos θ) with β=1.15–1.35 (with a linearly polarized laser). The effects of reactant ion rotation on the value of β were explored using a crude model and found to be small. The results indicate that photodissociation of (N2)+2 occurs by a direct transition to a repulsive surface. The transition is predominantly (>90%) 2Σ←2Σ and there was no evidence for the formation of electronically excited products.