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Titlebook: Hydrogen Bonding by C—H Groups; R. D. Green Textbook 1974Latest edition R. D. Green 1974 bonding.chemical bond.hydrogen

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樓主: memoir
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發(fā)表于 2025-3-23 12:34:38 | 只看該作者
12#
發(fā)表于 2025-3-23 14:08:40 | 只看該作者
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發(fā)表于 2025-3-23 20:26:08 | 只看該作者
R. D. Greening and not merely the absence of disease or infirmity (as defined by WHO). The state of health of an individual or population depends upon complex interaction of the physical, biological, political and social domains. The environment affects the human health in a big way. People tend to be most sus
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發(fā)表于 2025-3-24 01:51:57 | 只看該作者
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發(fā)表于 2025-3-24 03:10:32 | 只看該作者
R. D. Greenonservation biogeography has increasingly been using functional diversity (FD) as an alternative metric to describe how trait diversity is distributed throughout space. FD can be promptly related to the function played by species in a community, better than taxonomic diversity. Here, we mapped multi
16#
發(fā)表于 2025-3-24 09:28:04 | 只看該作者
planet, including anuran amphibians. Though biogeographical studies with anurans in South America have been continuously performed during the last decades, most of them focus on specific clades and/or regions. Moreover, no systematic compilation has been performed since the first synthesis of patter
17#
發(fā)表于 2025-3-24 12:50:44 | 只看該作者
18#
發(fā)表于 2025-3-24 17:51:38 | 只看該作者
sp3 Carbon,In view of the established opinion [7] that only compounds containing ‘a(chǎn)ctivated’ C—H groups are capable of hydrogen bond formation, this compound should be one of the most favourable for such studies. Indeed, the polarity of the C—Cl bond is greater than that of the other C—halogen bonds, with the
19#
發(fā)表于 2025-3-24 22:15:47 | 只看該作者
sp2 Carbon,rs in hydrogen bonding, Allerhand and Schleyer [7] observed the C—H stretching mode in the infrared spectrum of the molecules listed in Table 4.1 (see p. 116). The wavenumber of this mode (3060–3100 cm.) was found to decrease when azine or dimethyl sulphoxide was added to a CCl. solution of any of t
20#
發(fā)表于 2025-3-25 00:59:04 | 只看該作者
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