【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...
The 13C NMR spectrum (Supplementary Figure S2) of 1 aided by HMQC, revealed one carbonyl group (δC 201.0), five sp2 methine carbons (δC 131.9, 131.2, 122.8, 114.6 and 110.1), and seven other sp2 quaternary carbon atoms (δC 155.7, 154.5, 144.6, 134.8, 131.9, 125.0 and 125.1). ...
The catalyst was versatile, accommodating both proximal and distal olefination through the use of specific directing groups (DGs), making it effective for C(sp2)–H olefination across a wide spectrum. The transformation underscored the dual function of visible light as both an oxidant and an ...
FT-IR spectrum shows that a-C:H films consist of sp2and sp3bondings and the relative intensity ratio of sp2and sp3,I(sp2)/I(sp3), decreases from 0.28 to 0.19 as the substrate bias changes from 0 V to 400 V. Deposition rates of the films rapidly decrease with increasing Vsup to 200...
P(C6H5)4[VOBr4]: Synthese, IR-Spektrum und Kristallstruktur / P(C6H5)4[VOBr4]: Synthesis, IR Spectrum and Crystal Structure 喜欢 0 阅读量: 32 作者:Ulrich,Müller,Abdel-Fatah,Shihada,Kurt,Dehnicke 摘要: PPh4[VOBr4] was prepared...
Calculated reaction coordinate diagrams for competitive C(sp2)–Cl and C(sp2)–H oxidative addition of chlorobenzene with neutral PNP complexes of (top) Ir and (bottom) Rh. All values are given in kcal/mol. Note that the value of 0.0 is equal to the energy of the arene π-...
分类号:0627密级:单位代码:10422学号:如(7忻l午∥户第只番SHANDONGUNIVERSlTY博士学位论文Dissertation.forDoctoralDegree论文题目:袱.j{;夫碱佛豸.一寸eF键军口C—H键邰选择ll生浩化和劢角色化。3巴蛐比Ach呲记订04 ‰咖眦b勘九对C一尸/C—H||;on良伽F‰nn姒5涮彳陆巳作者姓名**单位专业名称指导教师...
In contrast, acridine 8 is a more challenging substrate which displays two potential reaction sites: the sp2 carbon atom located in the 1 position at ring D and the sp3 benzylic carbon atom located at ring A. Indeed, both C-H bond might afford a five membered cyclometallated adduct [31]...
C_6H_12O; IR: 1715 cm^-1; ^13C NMR: 8.0 delta (1 degrees), 18.5 delta The compound whose 1H-NMR and 13C-NMR spectra are shown has the molecular formula C8H9Br. Propose a structure. The peak at 1.2 ppm is a triplet, the one at 2.6 ppm is ...
spectrumaKHP-10-1212-04X MTSRHM1350MP071S1G8100 Ashcroft压力表\0150\1/2"NPTM\316SS MICHAELRIEDELControlTransformerType-RSTN-8000.8/2.55KVAPRIMARY-380/400/420SEC24V MAYR-03120/931.311/12/15 HYDAC-49090259175042/02 REXROTH5633011340 buehler9124030104 ...