01375nas a2200205   4500008004100000022001400041245006500055210006300120260011000183300001400293490000700307520065500314100002600969700001900995700001401014700001501028700001701043700001901060856009001079       2016                        eng d  a1359-734500aFacile access to a Ge(II) dication stabilized by isocyanides0 aFacile access to a GeII dication stabilized by isocyanides  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcMAY  a7890-78920 v523 a<p>Herein, we introduce isocyanide as a ligand in main group chemistry and describe the facile isolation of a Ge(II) dication. The reaction of 2,6-dimethylphenylisocyanide with GeCl2 leads to the formation of a Ge(II) dication with two [GeCl3](-) molecules as counter anions. The dicationic Ge(II) center is bound to four isocyanide ligands and also holds a lone pair of electrons. DFT calculations reveal that the dication is stabilized only by sigma-donation from the four isocyanide ligands. Natural population analysis gives a charge of +0.74 on the Ge(II) center, indicating that the positive charge is shared by the isocyanide substituents.</p>1 aSwamy, V., S. V. S. N1 aYadav, Sandeep1 aPal, Shiv1 aDas, Tamal1 aVanka, Kumar1 aSen, Sakya, S.  uhttps://library.ncl.res.in/content/facile-access-geii-dication-stabilized-isocyanides01067nas a2200169   4500008004100000022001500041245006300056210006200119260000800181300001200189490000700201520053800208100002600746700001700772700001900789856008900808       2018                        eng d  a 0019-452200aFacile activation of Si-H bond by an electrophilic carbene0 aFacile activation of SiH bond by an electrophilic carbene  cJUL  a789-7930 v953 aHerein, we have explored the chemistry of 1,3-bis(2,6-di-isopropylphenyl)-5,5-dimethy1-4,6-diketopyrimidinyl-2-ylidene (1) with various silanes under mild conditions. The oxidative addition of Si-H bond of phenylsilane with DAC 1 affords the compound 2, which is unambiguously characterized by muitinuclear NMR spectroscopy, elemental analysis, and X-ray single crystal diffraction studies. Interestingly, DAC 1 activates silicon hydride bond of chlorosilanes at room temperature and results in the corresponding silylation products.1 aSwamy, V., S. V. S. N1 aKundu, Gargi1 aSen, Sakya, S.  uhttps://library.ncl.res.in/content/facile-activation-si-h-bond-electrophilic-carbene