�ber die sauren Sulfite des Rubidiums und C�siums

Simón, A.; Waldmann, K.

doi:10.1007/bf01146095

Cited by 5 publications

(7 citation statements)

References 3 publications

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“…The acids ( I ) and (2) are liquid at room temperature and insoluble in apolar solvents. ( I ) : d:'= 1.522 g cm-', n; ' = 1.3674.…”

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

“…( I ) : d:'= 1.522 g cm-', n; ' = 1.3674. (2) : di0 = 2.140 g ern-,. B. p. 215 "C was extrapolated from a few vapor pressure values for ( I ) below 40°C; the evaporation enthalpy amounts to AH,,, = 10900calmol-', and the evaporation entropy to AS,,8 = 25.1calrnol-' OK-'.…”

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

“…B. p. 215 "C was extrapolated from a few vapor pressure values for ( I ) below 40°C; the evaporation enthalpy amounts to AH,,, = 10900calmol-', and the evaporation entropy to AS,,8 = 25.1calrnol-' OK-'. Although ( I ) is stable when moisture is excluded, (2) slowly becomes yellow (Br,), especially in light. Both compounds are hydrolyzed in aqueous solution, and then consume 3 equivalents of alkali hydroxide.…”

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

“…Accordingly, H, [PO,F] and HCI or HBr are formed, as was confirmed by chromatography. Li [PO,ClF] (3) and Li [PO,BrF] ( 4 ) were obtained on treatment of ethereal solutions of (1) or (2), respectively, with LiBr; they also are hydrolyzed and then require 2 equivalents of NaOH for neutralization.…”

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

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Tetrakis(methylmercurio)phosphonium Salts

Breitinger

Geske

Beitelschmidt

1971

Angew. Chem. Int. Ed. Engl.

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We have extended our studies of (methy1mercurio)ammonium complexes".to compounds of elements of Group VB. We have prepared tetrakis(methy1mercurio)-phosphonium salts [P(HgCH,) In the 'H-NMR spectrum[41 of [P(HgCH,),]PF, (Fig. 1) the main signal is at T = 9.28 ppm (9.27 ppm). This indicates similar distribution of the cationic charge over the peripheral H atoms in the phosphonium and the ammonium complex (Pauling electroneutrality principle). The constants for the short-range coupling between 'H and 199Hg are found to be ' J = JmCH = 155 Hz (1 73 Hz), corresponding to the differing electronegativities of the central atoms. Coupling between the peripheral protons and the central P atom leads to a doublet splitting of main signal and satellites with 3J = JPHgCH = 4.8 Hz. Finally, long-range coupling effects appear, due to the various nuclide compositions of the cations p(199HgCH3)n (200HgCH,)4-,]t (Y = N, P ; O< n < 4 ; "' Hg represents all the non-coupling Hg nuclides); the coupling constants 4J= JHgYmc, = 2., Hz (3.' Hz) are found.

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“…The acids ( I ) and (2) are liquid at room temperature and insoluble in apolar solvents. ( I ) : d:'= 1.522 g cm-', n; ' = 1.3674.…”

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

Section: H[pocif] and H[pobrf] Two New Djhalooxophosphorus Acids["]mentioning

confidence: 99%

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Tetrakis(methylmercurio)phosphonium Salts

Breitinger

Geske

Beitelschmidt

1971

Angew. Chem. Int. Ed. Engl.

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“…Doublets appear in the I9F-and 31P-NMR spectra (external standards: CF,COOH, 85% H,PO,) of ( I ) and (2) because of F P and PF coupling. The acids ( 1 ) and (2) scatter so feebly that Raman spectra could not be obtained. Therefore, the IR spectra of the salts (3) As a result of 'H-NMR investigations Fischer and Elschenbroich suggested that the diamagnetic bisfhexamethylbenzene)ruthenium(O) has a structure in which the C6 skeleton is no longer planar"].…”

mentioning

confidence: 99%

Molecular Structure of Bis(hexamethylbenzene)‐ruthenium(0)

Hüttner¹,

Lange²,

Fischer³

1971

Angew. Chem. Int. Ed. Engl.

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Highly viscous liquids were obtained as by-products, which were not examined but presumably are polyphosphorus acids formed by condensation. Reaction with iodine is very slow; in ether it leads to red precipitates consisting, according to the reaction conditions, of red phosphorus or PJ4.The acid ( I ) can also be obtained by mild partial hydrolysis of POC1,F. POCI,F+H,O --t H[PO,CIF]+ HCI (1) The acids ( I ) and (2) are liquid at room temperature and insoluble in apolar solvents. ( I ) : d:'= 1.522 g cm-', n; ' = 1.3674. (2) : di0 = 2.140 g ern-,. B. p. 215 "C was extrapolated from a few vapor pressure values for ( I ) below 40°C; the evaporation enthalpy amounts to AH,,, = 10900calmol-', and the evaporation entropy to AS,,8 = 25.1calrnol-' OK-'. Although ( I ) is stable when moisture is excluded, (2) slowly becomes yellow (Br,), especially in light. Both compounds are hydrolyzed in aqueous solution, and then consume 3 equivalents of alkali hydroxide. Accordingly, H,[PO,F] and HCI or HBr are formed, as was confirmed by chromatography. Li[PO,ClF] (3) andLi [PO,BrF] ( 4 ) were obtained on treatment of ethereal solutions of (1) or (2), respectively, with LiBr; they also are hydrolyzed and then require 2 equivalents of NaOH for neutralization.Doublets appear in the I9F-and 31P-NMR spectra (external standards: CF,COOH, 85% H,PO,) of ( I ) and (2) because of F P and PF coupling. H[PO,CIF] ( I ) H[PO,BrF] (2) 19F-NMR 6= -33.3ppm 6 = -46.3 ppm 3'P-NMR 6=+1.96ppm 6 = + 15.9 ppm JF,= 1055 Hz JpF = 1050 HZ J,,= 1106 Hz J,, = 1103 Hz

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Untersuchungen an Selen‐Sauerstoff‐Verbindungen. XI. Darstellung und Eigenschaften von Alkalialkylseleniten

Paetzold

Rönsch

1962

Zeitschrift anorg allge chemie

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Es wird die Darstellung der folgenden Alkalialkylselenite nach 5 Methoden beschrieben: CH3OSeO2Na, CH3OSeO2K, C2H5OSeO2K. Dabei wird u. a. gefunden, daß Alkalihydrogenselenite und Alkalidiselenite in alkoholischer Lösung Veresterung bzw. Alkoholyse erleiden, wobei identische Reaktionsprodukte entstehen. Einige Eigenschaften der dargestellten Halbestersalze werden angegeben. Für Methyläthylselenit wird ein weiteres Darstellungsverfahren gefunden.

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�ber die sauren Sulfite des Rubidiums und C�siums

Cited by 5 publications

References 3 publications

Tetrakis(methylmercurio)phosphonium Salts

Tetrakis(methylmercurio)phosphonium Salts

Molecular Structure of Bis(hexamethylbenzene)‐ruthenium(0)

Untersuchungen an Selen‐Sauerstoff‐Verbindungen. XI. Darstellung und Eigenschaften von Alkalialkylseleniten

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