Small Chains of Main Group Elements by BH3 Adduct Formation of tBu2E‐N(H)‐EtBu2 (E = P, As). Issue 13 (7th July 2020)

• Record Type: Journal Article
• Authors: Fritz, Maximilian; Maser, Leon; Ringler, Benjamin; von Hänisch, Carsten; Langer, Robert
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 646:Issue 13(2020)
• Page Start: 992
• Page End: 998
• Publication Date: 2020-07-07
• Subjects: Phosphorus -- Arsenic -- Boron -- Group 13/15 compounds -- Lewis acid base adducts; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.202000034
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : Borane adducts of bis (di‐ tert ‐butylphosphanyl)amine (1a ) and bis (di‐ tert ‐butylarsino)amine (1b ) are reported. Based on quantum‐chemical investigations in combination with experimental results, it is demonstrated that the tautomerism known for t Bu2 P‐N(H)‐P t Bu2 (1a ), can be observed for the mono adduct t Bu2 P‐N(H)‐P(BH3 ) t Bu2 (2a ) as well, whereas for the corresponding arsenic compound 2b only one stable isomer is found. The bis ‐borane adduct t Bu2 (BH3 )As‐N(H)‐As(BH3 ) t Bu2 (3b ) is a rare example of a structurally characterized, tertiary arsine borane adduct, which can be directly compared with the corresponding phosphorus compound t Bu2 (BH3 )P‐N(H)‐P(BH3 ) t Bu2 (3a ). Deprotonation of mixtures containing 2a by n BuLi leads to the lithium‐containing coordination polymer 4a, in which the actual chain consists only of non‐carbon atoms. Abstract :