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Organometallic Compounds of the Lanthanides. 127 [1] Synthesis of Monomeric Bis(cyclopentadienyl)lanthanide Tetrahydroborates with Bulky Cyclopentadienyl Ligands. Single Crystal X‐ray Structures of [(η 5 ‐C 5 Me 5 ) 2 SmBH 4 (THF)] and [(η 5 ‐C 5 Me 4 Et) 2 Y(μ‐H) 2 BH 2 (THF)]
Author(s) -
Schumann Herbert,
Keitsch Markus R.,
Demtschuk Jörg,
Mühle Stefan
Publication year - 1998
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(1998110)624:11<1811::aid-zaac1811>3.0.co;2-w
Subject(s) - lutetium , cyclopentadienyl complex , lanthanide , samarium , chemistry , yttrium , crystal structure , crystallography , single crystal , stereochemistry , medicinal chemistry , inorganic chemistry , organic chemistry , ion , catalysis , oxide
The trichlorides of yttrium, samarium, and lutetium react with 2 equivalents of Na[C 5 H 4 t Bu] and 1 equivalent of NaBH 4 to give [(η 5 ‐C 5 H 4 t Bu) 2 LnBH 4 (THF)] (Ln = Y ( 1 ), Sm ( 2 ), Lu ( 3 )) or with 2 equivalents of Na[C 5 Me 4 R] and 1 equivalent of NaBH 4 to form [(η 5 ‐C 5 Me 4 R) 2 · LnBH 4 (THF)] (R = H, Ln = Y ( 4 ), Sm ( 5 ), Lu ( 6 ); R = Me, Ln = Y ( 7 ), Sm ( 8 ), Lu ( 9 ); R = Et, Ln = Y ( 10 ), Sm ( 11 ), Lu ( 12 ); R = i Pr, Ln = Y ( 13 ), Sm ( 14 ), Lu ( 15 )). The new compounds have been characterized by elemental analysis, NMR spectroscopy and mass spectrometry. The crystal structures of 8 and 10 were determined by single crystal X‐ray diffraction.