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Description
| - The reaction between nido-B10H14 and PCl3 in the presence of proton sponge (PS = 1,8-bis(dimethylamino) naphthalene) in CH2Cl2 yielded a mixture of icosahedral diphosphaboranes from which 1,2-closo-P2B10H10 (1a) and its mono- and di-chloro derivatives 3-Cl-1,2-closo-P2B10H9 (2a), 4-Cl-1,2-closo-P2B10H9 (2b), 3,6-Cl-2-1,2-closo-P2B10H8 (3a), and 3,4-Cl-2-1,2-closo-P2B10H8 (3b) were isolated together with 4-Cl(CH2)(4)O-1,2-closo-P2B10H10 4 via preparative HPLC. Individual compounds were characterized by NMR (H-1, B-11, P-31) spectroscopy and, except for 4, geometry optimised at the (RMP2(fc)) level with a 6-31G* basis set. The optimisation disclosed considerable distortions of the icosahedral cage as documented by the narrowing of the pentagonal B-P-B angles (ca. 93degrees) and the longer P-P separations (>2.31 Angstrom). In this context, the RMP2(fc)/6-31G* geometries of 1,7-closo-P2B10H10 (1b) and that of the non-isolated 4,5-Cl-2-1,2-closo-P2B10H8 isomer (3c) were also derived. The geometries were us
- The reaction between nido-B10H14 and PCl3 in the presence of proton sponge (PS = 1,8-bis(dimethylamino) naphthalene) in CH2Cl2 yielded a mixture of icosahedral diphosphaboranes from which 1,2-closo-P2B10H10 (1a) and its mono- and di-chloro derivatives 3-Cl-1,2-closo-P2B10H9 (2a), 4-Cl-1,2-closo-P2B10H9 (2b), 3,6-Cl-2-1,2-closo-P2B10H8 (3a), and 3,4-Cl-2-1,2-closo-P2B10H8 (3b) were isolated together with 4-Cl(CH2)(4)O-1,2-closo-P2B10H10 4 via preparative HPLC. Individual compounds were characterized by NMR (H-1, B-11, P-31) spectroscopy and, except for 4, geometry optimised at the (RMP2(fc)) level with a 6-31G* basis set. The optimisation disclosed considerable distortions of the icosahedral cage as documented by the narrowing of the pentagonal B-P-B angles (ca. 93degrees) and the longer P-P separations (>2.31 Angstrom). In this context, the RMP2(fc)/6-31G* geometries of 1,7-closo-P2B10H10 (1b) and that of the non-isolated 4,5-Cl-2-1,2-closo-P2B10H8 isomer (3c) were also derived. The geometries were us (en)
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Title
| - Phosphaborane chemistry. Syntheses and calculated molecular structures of mono- and di-chloro derivatives of 1,2-diphospha-closo-dodecaborane(10).
- Phosphaborane chemistry. Syntheses and calculated molecular structures of mono- and di-chloro derivatives of 1,2-diphospha-closo-dodecaborane(10). (en)
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skos:prefLabel
| - Phosphaborane chemistry. Syntheses and calculated molecular structures of mono- and di-chloro derivatives of 1,2-diphospha-closo-dodecaborane(10).
- Phosphaborane chemistry. Syntheses and calculated molecular structures of mono- and di-chloro derivatives of 1,2-diphospha-closo-dodecaborane(10). (en)
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skos:notation
| - RIV/61388980:_____/02:50023048!RIV/2003/GA0/A50003/N
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA203/00/1042), P(GA203/99/M037), P(LN00A028), Z(AV0Z4032918), Z(MSM 113100001)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388980:_____/02:50023048
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - crystal-structure; phosphacarborane chemistry; polyhedral phosphaboranes (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of the Chemical Society ,Dalton Transactions
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...ocetUcastnikuAkce
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http://linked.open...nichUcastnikuAkce
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Císařová, I.
- Grüner, Bohumír
- Štíbr, Bohumil
- Plzák, Zbyněk
- Hnyk, Drahomír
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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