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151.
Rebecca A.H. Butler Paul Helminger Ewa Bialkowska-Jaworska 《Journal of Molecular Spectroscopy》2007,244(2):113-116
The pure rotational spectrum of chlorine nitrate in its v6 = 1 excited vibrational state has been studied. A total of 2901 lines, with Ka extending to 33 in the 35Cl isotopologue and 30 in the 37Cl isotopologue, respectively, have been recorded and assigned. This analysis, along with our recently reported study of the ν5/ν6ν9 dyad and the improved energy levels of ν9 reported in this paper, should make possible accurate simulation of the corresponding ν6 band and its complex hot band structure near 435 cm−1. 相似文献
152.
Moumita Paira 《Tetrahedron letters》2008,49(15):2432-2434
α-Dehydro-β-amino esters have been synthesized regioselectively from acetates of Baylis-Hillman adducts with amines in the presence of a catalytic amount of ceric ammonium nitrate (CAN) in good yield. The regioselectivity does not differ with respect to the polarity of the solvent. 相似文献
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154.
Zdeněk Slanina 《光谱学快报》2013,46(10):1965-1973
Abstract ClONO2 is treated ab initio by the second order M?ller-Plesset perturbation approach with the 6-31G? basis set. The minimum-energy structure is planar (Cs symmetry) while in the activated complex for internal rotation around the NO bond the Cl atom exhibits torsion by 90° but the structure has the Cs symmetry, too. For both structures harmonic vibrational frequencies and IR intensities are calculated. The agreement with available observed data from matrix isolation is very good. The MP2 frequencies are mostly somewhat lower comparing to related SCF values. The energetics is also evaluated in the MP4 fourth order perturbation treatment. The best value found for the barrier of internal rotation is 31 kJ/mol, i.e. significantly low. 相似文献
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Lei ZhangYun Hang Hu 《Physics letters. A》2011,375(13):1514-1517
It was recognized that ZnO can be formed during synthesizing nano Zn4O(C8H4O4)3 metal-organic framework (nano MOF-5). Furthermore, it is generally accepted that the ZnO is dispersed inside the pores of MOF-5. However, herein, the measurements of X-ray powder diffraction (XRD) and transmission electron microscopy (TEM) showed that the crystal particle sizes of ZnO in MOF-5 are in the range of 5-18 nm, which are larger than the pore size of MOF-5 (1.3 nm). This clearly demonstrates that those ZnO nanoparticles are located outside the pores of MOF-5. 相似文献
160.
To study the coherence of thermodynamic data of the AgNO3-LiNO3 -RbNO3 ternary system, phase diagram of the binary system AgNO3 -LiNO3 has been obtained between 303 and 550 K by direct and differential thermal analysis technique. This system is characterized
by an eutectic point (25% mol. LiNO3 , 445±1 K) and a plateau due to the solid-solid transition in AgNO3 at 434±1 K. In the solid state the solubility of each component in the other seems to be nil or negligible (no more than
a few percents). Using other thermodynamic data, the excess properties of the binary liquid (AgNO3 - LiNO3 ) were calculated at 623 K.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献