{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["60(12)"],"submitter":["Freccero R"],"funding":["Max-Planck-Gesellschaft"],"pubmed_abstract":["The monogermanide LuGe is obtained via high-pressure high-temperature synthesis (5-15 GPa, 1023-1423 K). The crystal structure is solved from single-crystal X-ray diffraction data (structure type FeB, space group Pnma, a=7.660(2) Å, b=3.875(1) Å, and c=5.715(2) Å, R<sub>F</sub> =0.036 for 206 symmetry independent reflections). The analysis of chemical bonding applying quantum-chemical techniques in position space was performed. It revealed-beside the expected 2c-Ge-Ge bonds in the germanium polyanion-rather unexpected four-atomic bonds between lutetium atoms indicating the formation of a polycation by the excess electrons in the system Lu<sup>3+</sup> (2b)Ge<sup>2-</sup> ×1 e<sup>-</sup> . Despite the reduced VEC of 3.5, lutetium monogermanide is following the extended 8-N rule with the trend to form lutetium-lutetium bonds utilizing the electrons left after satisfying the bonding needs in the anionic Ge-Ge zigzag chain."],"journal":["Angewandte Chemie (International ed. in English)"],"pagination":["6457-6461"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7986909"],"repository":["biostudies-literature"],"pubmed_title":["\"Excess\" electrons in LuGe."],"pmcid":["PMC7986909"],"pubmed_authors":["Wagner FR","Schnelle W","Schmidt M","Schwarz U","Grin Y","Prots Y","Freccero R","Hubner JM"],"additional_accession":[]},"is_claimable":false,"name":"\"Excess\" electrons in LuGe.","description":"The monogermanide LuGe is obtained via high-pressure high-temperature synthesis (5-15 GPa, 1023-1423 K). The crystal structure is solved from single-crystal X-ray diffraction data (structure type FeB, space group Pnma, a=7.660(2) Å, b=3.875(1) Å, and c=5.715(2) Å, R<sub>F</sub> =0.036 for 206 symmetry independent reflections). The analysis of chemical bonding applying quantum-chemical techniques in position space was performed. It revealed-beside the expected 2c-Ge-Ge bonds in the germanium polyanion-rather unexpected four-atomic bonds between lutetium atoms indicating the formation of a polycation by the excess electrons in the system Lu<sup>3+</sup> (2b)Ge<sup>2-</sup> ×1 e<sup>-</sup> . Despite the reduced VEC of 3.5, lutetium monogermanide is following the extended 8-N rule with the trend to form lutetium-lutetium bonds utilizing the electrons left after satisfying the bonding needs in the anionic Ge-Ge zigzag chain.","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Mar","modification":"2025-04-04T20:35:46.888Z","creation":"2025-04-04T20:35:46.888Z"},"accession":"S-EPMC7986909","cross_references":{"pubmed":["33236821"],"doi":["10.1002/anie.202014284"]}}