CHMB31H3 Chapter Notes - Chapter 10: Hydrogenolysis, Bond-Dissociation Energy, Activated Complex
Document Summary
The essentials strong lewis acid: hydrogen ranges in character from being a strong lewis base to being a, hydrogen atoms can form bonds to more than one other atom simultaneously. It is normally assigned the oxidation number -1 when combined with metals and +1 when combined with nonmetals). and a short bond length: compounds formed between hydrogen and other elements vary in their the halogens. nature and stability. For group 13, alh3 is the only exergonic at room temperature. For the rest of the p block, the simple hydrogen compounds of the first members of the groups are exergonic but become progressively unstable down the group. The reactions of binary compounds of hydrogen fall into three classes, depending on the polarity of the e-h bond. The detail: if e is less electronegative than h, heterolytic bond cleavage also occurs but an h- ion is transferred to a lewis acid (h atom is hydridic)
