Infrared matrix isolation studies of the reactions of F2 with sulfur and phosphorus bases
作者:Nicholas P. Machara、Bruce S. Ault
DOI:10.1016/0022-2860(88)87011-x
日期:1988.2
The matrix isolation technique has been used to study the initial intermediate products of the reaction of molecular fluorine, F 2 , with several alkyl sulfides, as well as with trimethylphosphine. While previous studies of the reaction of these bases with ClF and Cl 2 demonstrated that charge transfer complexes are formed no evidence has been here for complex formation. Rather direct reaction occurs
摘要 基质分离技术已用于研究分子氟 F 2 与几种烷基硫化物以及三甲基膦反应的初始中间产物。虽然之前对这些碱与 ClF 和 Cl 2 反应的研究表明形成了电荷转移复合物,但这里没有证据表明复合物形成。所研究的每个系统都会发生相当直接的反应,在几种情况下会导致氢置换产物,而在其他系统中,光谱证据支持直接加成反应。例如,在 F 2 /H 2 S 系统中,假设最初形成 H 2 SF 2,然后在汞弧辐照下消除 HF 以形成 HSF。
Formation and characterization of HUF and DUF in solid argon
Reactions of laser-ablated U atoms with HF and DF in condensing and solid rare gas produce HUF and DUF as the major new products based on close agreement between observed and calculated vibrational frequencies and deuterium shifts for U–H and U–F stretching modes at 1383 and 544 cm−1, respectively.
The Trifluorophosphonium Ion, PF<sub>3</sub>H<sup>+</sup>, Preparation and Structure
作者:Ralf Küster、Thomas Drews、Konrad Seppelt
DOI:10.1021/ic991420w
日期:2000.6.1
The PF3H+ ion is prepared as PF3H+.SbF6-.HF by protonation of PF3 with HF/SbF5 at low temperatures in anhydrous HF. Crystals are obtained directly from this solvent. A crystal structure determination shows the presence of a pseudo-tetrahedral PF3H+ ion with a mean P-F distance of 148.7(2) pm, a P-H distance of 122(4) pm, and a mean PF2 angle of 106.1(1) degrees. Raman spectra were recorded of PF3H+SbF6-
Vibrational energy disposal in reactions of fluorine atoms with hydrides of groups III, IV and V
作者:A.S. Manocha、D.W. Setser、M.A. Wickramaaratchi
DOI:10.1016/0301-0104(83)85058-7
日期:1983.4
from the reactions of F atoms with B2H6, CH4, CH3F, CH2F2, CH2Cl2, CH3ONO. CH3NO2, NH3 (and ND3). PH3 and HNCO has been observed from a 300 K flowing-afterglow reactor. Experiments were done for a range of CH4 and F atom concentrations to identify conditions which were free of vibrational relaxation and secondary reactions, and these conditions were used to assign initial HF(v) vibrational distributions
F原子与B 2 H 6,CH 4,CH 3 F,CH 2 F 2,CH 2 Cl 2,CH 3 ONO反应生成的HF红外化学发光。CH 3 NO 2,NH 3(和ND 3)。从300 K余辉流动反应器中观察到PH 3和HNCO。对一系列CH 4和F原子浓度进行了实验,以确定没有振动弛豫和二次反应的条件,并将这些条件用于分配初始HF(v)每个反应的振动分布。还比较了每个反应的发射强度与CH 4的发射强度,以便获得300 K时的相对HF形成速率常数。由于F + CH 4的绝对速率常数已经确定,所有这些数据的组合提供了在300 K时形成HF(v)的绝对速率常数。为了更好地估算氨分布的HF(v = 0)和DF(v = 0)分量,研究了ND 3反应以获得更多振动水平的信息。。使用NH 3和ND 3同位素对能量处置没有明显影响。除NHCO可能有加除通道外,HF(v)分布反转且< f v > = 0.6
OPERATING CHARACTERISTICS OF A TRANSVERSE‐FLOW DF–CO<sub>2</sub>PURELY CHEMICAL LASER
作者:Terrill A. Cool、John A. Shirley、Ronald R. Stephens
DOI:10.1063/1.1653401
日期:1970.10
Experimental results are presented giving the operatingcharacteristics of a newly developed DF–CO2 purely chemicallaser. The present oscillator is capable of a maximum cw output power of 162 W at 10.6 μ with no external energy source used to initiate or sustain laser excitation. An optical axis has been employed aligned transverse to the flow direction with a view toward achieving operation which
实验结果给出了新开发的 DF-CO2 纯化学激光器的工作特性。本振荡器在 10.6 μ 时的最大连续输出功率为 162 W,无需用于启动或维持激光激发的外部能源。已采用与流动方向横向对齐的光轴,以实现可直接缩放到高输出功率的操作。给出了对 P 和 R 分支 CO2 (00°1) → CO2 (10°0) 跃迁、功率输出、工作温度和压力以及化学效率的饱和参数、不饱和增益系数和振动-旋转状态种群的测量.