"654228" . . "RIV/61388980:_____/02:50023008" . "[385BA991BE64]" . . . . "Monocarbaborane anion chemistry. Syntheses and structures within the closo nine-vertex system."@en . . "Monocarbaborane anion chemistry. Syntheses and structures within the closo nine-vertex system."@en . "boranes; monocarbaboranes; thermolyses"@en . . "Monocarbaborane anion chemistry. Syntheses and structures within the closo nine-vertex system." . "Monocarbaborane anion chemistry. Syntheses and structures within the closo nine-vertex system." . . . "Reaction of HCHO with B10H14 under aqueous alkaline conditions yields the arachno 10-vertex [6-CB9 H-14](-) anion 2 (60%) which upon solid-state thermolysis as its Cs+ salt yields the closo 9-vertex [4-CB8H9](-) anion 1 (45%). MeCHO reacts similarly to give the C-methylated arachno [6-Me-6-CB9H13](-) anion 4 (37%) which upon thermolysis gives the closo [4-Me-4-CB8H8](-) anion 3 (72%). PhCHO with B10H14 under alkaline conditions gives the nido 10-vertex [6-Ph-6-CB9H11](-) anion 6 (85%) which upon thermolysis of its [NEt4](+) salt gives the closo [4-Ph-4-CB8H8](-) anion 5 (73%). In a preliminary iodination investigation, unsubstituted closo anion 1 with elemental I-2 in CH2Cl2 gives approximately equimolar closo [4-CB8H8-3-I](-) 12 and closo [4-CB8H8-5-I](-) 13 (ca 60%) and smaller amounts of closo [4-CB8H7-5,6-I-2](-) 14 (12%). The [NEt4](+) salts of 1, 3 and 5 are characterised crystallographically, as is the [PMePh3](+) salt of 12." . "1035;1050" . . "Jel\u00EDnek, Tom\u00E1\u0161" . . "16"^^ . "Collection of Czechoslovak Chemical Communications" . "Thornton-Pett, M." . . "Kennedy, J. D." . "P(IBS4032007), Z(AV0Z4032918)" . "67" . . "CZ - \u010Cesk\u00E1 republika" . . "0010-0765" . . "1"^^ . . . "3"^^ . "RIV/61388980:_____/02:50023008!RIV/2003/AV0/A50003/N" . . "7" . "0"^^ . "0"^^ . "Reaction of HCHO with B10H14 under aqueous alkaline conditions yields the arachno 10-vertex [6-CB9 H-14](-) anion 2 (60%) which upon solid-state thermolysis as its Cs+ salt yields the closo 9-vertex [4-CB8H9](-) anion 1 (45%). MeCHO reacts similarly to give the C-methylated arachno [6-Me-6-CB9H13](-) anion 4 (37%) which upon thermolysis gives the closo [4-Me-4-CB8H8](-) anion 3 (72%). PhCHO with B10H14 under alkaline conditions gives the nido 10-vertex [6-Ph-6-CB9H11](-) anion 6 (85%) which upon thermolysis of its [NEt4](+) salt gives the closo [4-Ph-4-CB8H8](-) anion 5 (73%). In a preliminary iodination investigation, unsubstituted closo anion 1 with elemental I-2 in CH2Cl2 gives approximately equimolar closo [4-CB8H8-3-I](-) 12 and closo [4-CB8H8-5-I](-) 13 (ca 60%) and smaller amounts of closo [4-CB8H7-5,6-I-2](-) 14 (12%). The [NEt4](+) salts of 1, 3 and 5 are characterised crystallographically, as is the [PMePh3](+) salt of 12."@en .