【例题7.3 】某化合物分子式 C H NO4,试根据以下谱图 (图7-例3)数据推测其结构。IR Spectrum3547(KBr disc)1722165940003000200016001200800 v(cm-1)100107192Mass Spectrum0147C13H17NO4M+=251。m/z40 80 120)160 200 240 280'H NMR Spectrum(400 MHz, CDCl, solution)expansions expansions Note: there i...
图7 2.8 μm增益开关光纤激光器的输出特性 (a)脉冲包络,插图为泵浦脉冲包络;(b)脉冲序列,插图为20 ms大范围脉冲序列;(c)光谱;(d)基频频谱,插图为1.2 MHz频谱图 Fig.7 Output characteristics of 2.8 μm gain-switched fiber laser. (a) Pulse...
【例题7.1 】 某化合物分子式CH1NO2,试根据以下谱图(图7-例1)数据推测其结构。34283207IR Spectrum(KBr disc)16780:400030002000 1600 1200 800 v(cm1)80 055Mass Spectrum M+'=155C8H13NO2m/z4080 120160200240280expansion'H NMR Spectrum(400 MHz, CDCl, solution)T Exchanges2.6 2.4 ppm2.52.0 11.5W ...
We report the first measurement of the near IR spectrum of theNO–CH4complex in the region of the first vibrational NO overtone transition in an IR-resonance enhanced multiphoton ionization double resonance experiment. The origin band is located at3723.26cm1, i.e., redshifted by0.59cm1from the...
ChemInform Abstract: Synthesis, IR Spectrum, and Crystal Structure of PPh4(OsCl4(NO)(NSCl)).osmium, Osstructure (solids and liquidsIR and Raman spectra (solids and liquidsRed crystals of the title compound are obtained as outlined in the scheme (yields in g).doi:10.1002/chin.198824040...
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produced by IR vibrational hole burning Persistent changes in the fir spectrum of KI: NO2 produced by IR vibrational hole burningdoi:10.1016/0009-2614(88)80277-X WP Ambrose,AJ Sievers 被引量: 0发表: 1988年 Persistent infrared spectral hole burning of NO2 ions in potassium halide crystals. I...
红外光谱IR 样品的红外吸收图谱应与对照品的红外图谱一致 The infrared absorption spectrum is consistentwith that of the Standard HPLC 样品液主峰的保留时间应与标准液的保留时间一致The retention time of the major peak of theSample solution corresponds to that of theStandard solution ...
ESR Spectrum of HO2 in Solutions of Hydrogen Peroxide in Water at 77°K The ESR spectrum of DO2was observed in a deuterated sample, and computer analysis gave parameters in reasonable agreement with those for HO2, allowing ... Wyard,S. J. - 《Journal of Chemical Physics》 被引量: 66发...
Here we report the 9σ detection of two fundamental vibration bands of SO2, at 7.35 μm and 8.69 μm, in the transmission spectrum of WASP-107b using the Mid-Infrared Instrument (MIRI) of JWST. This discovery establishes WASP-107b as the second irradiated exoplanet with confirmed ...