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Description
| - new series of low-melting quaternary ammonium salts based on a glycolated cobalt bis(dicarbollide) anion structure have been synthesized and characterized, and their spectroscopic and physicochemical properties have been studied. The lowest melting point was obtained for 1-butyl-3-methylimidazolium (similar to 50 degrees C) followed by 1-butyl-1-methylpiperidinium (similar to 80 degrees C), 1-butyl-1-methylpyrrolidinium (similar to 95 degrees C), and 1-butyl-4-methylpyridinium salts (similar to 115 degrees C). The salts were thermally stable up to 180 degrees C [decomposition of an oligo(ethylene glycol) chain] and contained variable amounts of water. The flexible oligo(ethylene glycol) chains contributed to the waxy state of salts. The solubility of the salts was determined for 76 solvents that are commonly used in organic chemistry. Generally, the solubility increased with the dipole moment and relative polarity of the solvent. Salts exhibited good solubility in ketones and esters; moderate solubility was observed in alcohols, aromates, and chlorinated solvents, and poor solubility was obtained in ethers. The salts were practically insoluble in higher hydrocarbons and water. Salts are dissolved in the form of ion pairs or separated ions, depending on the nature of the solvent.
- new series of low-melting quaternary ammonium salts based on a glycolated cobalt bis(dicarbollide) anion structure have been synthesized and characterized, and their spectroscopic and physicochemical properties have been studied. The lowest melting point was obtained for 1-butyl-3-methylimidazolium (similar to 50 degrees C) followed by 1-butyl-1-methylpiperidinium (similar to 80 degrees C), 1-butyl-1-methylpyrrolidinium (similar to 95 degrees C), and 1-butyl-4-methylpyridinium salts (similar to 115 degrees C). The salts were thermally stable up to 180 degrees C [decomposition of an oligo(ethylene glycol) chain] and contained variable amounts of water. The flexible oligo(ethylene glycol) chains contributed to the waxy state of salts. The solubility of the salts was determined for 76 solvents that are commonly used in organic chemistry. Generally, the solubility increased with the dipole moment and relative polarity of the solvent. Salts exhibited good solubility in ketones and esters; moderate solubility was observed in alcohols, aromates, and chlorinated solvents, and poor solubility was obtained in ethers. The salts were practically insoluble in higher hydrocarbons and water. Salts are dissolved in the form of ion pairs or separated ions, depending on the nature of the solvent. (en)
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Title
| - Low-Melting Salts Based on a Glycolated Cobalt Bis(dicarbollide) Anion
- Low-Melting Salts Based on a Glycolated Cobalt Bis(dicarbollide) Anion (en)
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skos:prefLabel
| - Low-Melting Salts Based on a Glycolated Cobalt Bis(dicarbollide) Anion
- Low-Melting Salts Based on a Glycolated Cobalt Bis(dicarbollide) Anion (en)
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skos:notation
| - RIV/60461373:22340/12:43893307!RIV13-GA0-22340___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GAP303/11/1291), P(KAN200100801), S
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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/60461373:22340/12:43893307
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - POTENT INHIBITORS; POLYHEDRAL BORANES; GAS-CHROMATOGRAPHY; ACTINIDE EXTRACTIONS; PHASE MICROEXTRACTION; COBALTABISDICARBOLLIDE ANION; BORON CLUSTER ANIONS; ACIDIC NUCLEAR-WASTE; DESIGNING IONIC LIQUIDS; SELECTIVE EXTRACTION AGENTS (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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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...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
| - Jakubek, Milan
- Kaplánek, Robert
- Král, Vladimír
- Rak, Jakub
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
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http://localhost/t...ganizacniJednotka
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