Differences between IMCIHBs, agostic bonds and class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2210271X16303747&_mathId=si5.gif&_user=111111111&_pii=S2210271X16303747&_rdoc=1&_issn=2210271X&md5=fb740cc3e2a3aa9015685678fc12831b" title="Click to view the MathML source">σclass="mathContainer hidden">class="mathCode"> interactions are studied.
IMCIHBs feature significantly smaller covalent character than the other interactions.
Some topological differences between IMCIHBs and the other interactions are found.
Influence of the Si class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2210271X16303747&_mathId=si90.gif&_user=111111111&_pii=S2210271X16303747&_rdoc=1&_issn=2210271X&md5=fc0df80c5e6a2597c5696f4a65e33a2c" title="Click to view the MathML source">→class="mathContainer hidden">class="mathCode"> Ge replacement is carefully studied.
Current state of knowledge on the chemistry of germanium is increased.