hypervalent造句
例句與造句
- There is some evidence that some silyl deprotections proceed via hypervalent silicon species.
- Corriu and coworkers performed early work characterizing reactions thought to proceed through a hypervalent transition state.
- This localization of charge is accommodated by the fact that the terminal ligands are highly electronegative in hypervalent molecules.
- The apparent increased reactivity of hypervalent molecules, contrasted with tetravalent analogues, has also been observed for Grignard reactions.
- In another method diaryliodonium salts are prepared from preformed hypervalent iodine compounds such as iodic acid, iodosyl sulfate or iodosyl triflate.
- It's difficult to find hypervalent in a sentence. 用hypervalent造句挺難的
- Hypervalent bonding is described by inclusion of non-bonding MOs, as also invoked for the closely related molecule phosphorus pentafluoride.
- Pauling also considered hypervalent molecules, in which main-group elements have apparent valences greater than the maximal of 4 allowed by the octet rule.
- In 1990, Magnusson published a seminal work definitively excluding the role of d-orbital hybridization in bonding in hypervalent compounds of second-row elements.
- Finally, to ensure that the axial vs equatorial preference of different ligands in hypervalent compounds is reproduced, an " offset energy " term is subtracted.
- Other more convenient or less toxic reagents for oxidizing alcohols include dimethyl sulfoxide, which is used in hypervalent iodine compounds, such as the Dess Martin periodinane.
- "' ( Bis ( trifluoroacetoxy ) iodo ) benzene "',, is a hypervalent iodine compound used as a reagent in organic chemistry.
- There are, however, some hypervalent molecules in which the 3d level may play a part in the bonding, although this is controversial ( see below ).
- Atoms are labelled with the sulfur atom connected to three fluorine atoms as S " hyp " ( for hypervalent ) and S " top ".
- Additionally, furfural has been converted to 2-furonitrile by a number of reagents, including hydrazoic acid-perchloric acid, hypervalent iodine ( III ) and n-bromosuccinimide.
- The first hypervalent iodine compound, ( dichloroiodo ) benzene ( ) was prepared in 1886 by the German chemist Conrad Willgerodt by passing chlorine gas through iodobenzene in a cooled solution of chloroform.
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