H Chemical Shifts

As you can see from Table 13 1 it is common for several different kinds of pro tons to have similar chemical shifts The range covered for H chemical shifts is only... 

Section 13 19 2D NMR techniques are enhancements that are sometimes useful m gam mg additional structural information A H H COSY spectrum reveals which protons are spin coupled to other protons which helps m deter mining connectivity A HETCOR spectrum shows the C—H connections by correlating C and H chemical shifts... 

HETCOR (Section 13 19) A 2D NMR technique that correlates the H chemical shift of a proton to the chemical shift of the carbon to which it is attached HETCOR stands for heteronuclear chemical shift correlation Heteroatom (Section 1 7) An atom in an organic molecule that IS neither carbon nor hydrogen Heterocyclic compound (Section 3 15) Cyclic compound in which one or more of the atoms in the nng are elements other than carbon Heterocyclic compounds may or may not be aromatic... 

Table 1 H Chemical Shifts of the Simple Monocyclic Azines cf. benzene, S 7.24) (b-73NMR>...

Table 2 H Chemical Shifts of Protons on the Heterocyclic Rings of Simple Benzazines cf. naphthalene, column 1)...

The H chemical shifts shown in Table 6 for 3-substituted pyrazoles are mean values of 3- and 5-substituted tautomers. Only in the case of the 3-azidopyrazole (56) have the... 

C and H chemical shifts and the corresponding coupling constants have been determined for the chelate (225 M = Zn(II)) (81M105). 

Table 2.1. H chemical shift ranges for organic compounds...

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