用半径-电荷比研究SiHmXn和CHmXn型分子的标准生成焓   总被引：1，自引：0，他引：1  

谢兵  冯琳  杨锋  罗明道  屈松生 《地球科学》2001,26(3):328-330

本文用原子的半径-电荷比定义原子结构参数Pi和分子结构参数P.用P分别研究了含氢分子SiHmXn和CHmXn（X=F，Cl，Br，I）的标准生成焓，二者呈良好的线性关系.本文的定义考虑了氢对分子结构和性质的贡献.  相似文献   

The rotational temperatures of Silicon hydride isotopomer lines in sunspot umbrae     

P. Sriramachandran  C. AmbikaR. Shanmugavel 《New Astronomy》2012,17(3):281-284

The published sunspot spectrum obtained with National Solar Observatory/Kitt Peak laboratory’s high signal to noise ratio telescope and high resolution Fourier Transform Spectrometer were used for the study. A search was made for the prominent lines of the (0, 0) and (1, 1) A²Δ − X²Π for Silicon hydride isotopomers which lie between 23500 cm⁻¹ and 24500 cm⁻¹. The presence of lines from the (0, 0) and (1, 1) A²Δ − X²Π transition of SiH molecule coincided with the sunspot umbral lines suggest that Silicon hydride appears to be a non-negligible component of sunspot umbrae. However, the presence of A²Δ − X²Π (0, 0) and (1, 1) bands of SiD was found to be doubtful because of the lack of number of well identified lines in sunspot umbral spectra. Equivalent widths have been measured for well-resolved lines and, thereby, the rotational temperatures have been estimated for the band systems for which the presence is confirmed.  相似文献