Complexes of germanium(iv) fluoride with phosphane ligands: structural and spectroscopic authentication of germanium(iv) phosphane complexes

Davis, Martin F.; Levason, William; Reid, Gillian; Webster, Michael

doi:10.1039/b716765b

Cited by 43 publications

(51 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reactions of AsMe 3 or AsEt 3 with GeCl 4 produced trans-[GeCl 4 (AsR 3 ) 2 ], both confirmed by X-ray crystal structures [264,270]; in solution over several days these decompose forming AsR 3 Cl 2 [264]. No reaction was found between GeCl 4 and o-C 6 H 4 (AsMe 2 ) 2 [264].…”

Section: Germaniummentioning

confidence: 82%

See 1 more Smart Citation

Coordination chemistry of the main group elements with phosphine, arsine and stibine ligands

Burt

Levason

Reid

2014

Coordination Chemistry Reviews

Self Cite

100

137

View full text Add to dashboard Cite

Section: Germaniummentioning

confidence: 82%

“…No reaction was found between GeCl 4 and o-C 6 H 4 (AsMe 2 ) 2 [264]. The successful isolation of [GeCl 4 (AsR 3 ) 2 ], in contrast to the transient formation of the corresponding phosphines, is readily attributed to the much greater reducing power of the phosphines.…”

Section: Germaniummentioning

confidence: 86%

Coordination chemistry of the main group elements with phosphine, arsine and stibine ligands

Burt

Levason

Reid

2014

Coordination Chemistry Reviews

Self Cite

100

137

View full text Add to dashboard Cite

“…7, P4-Nb1-P3 = 71.38 7, F3-Nb1-F2 = 95.29 (19), F3-Nb1-F1 = 92.86 (19), F2-Nb1-F4 = 92.78 (19), F1-Nb1-F4 = 95.35 (19). (14). Symmetry operator a = (x, −y, z).…”

Section: Resultsmentioning

confidence: 99%

Soft diphosphine and diarsine complexes of niobium(v) and tantalum(v) fluorides: synthesis, properties, structures and comparisons with the corresponding chlorides

et al. 2014

Self Cite

View full text Add to dashboard Cite

The reactions of the soft diphosphines o-C6H4(PMe2)2, Me2P(CH2)2PMe2, Et2P(CH2)2PEt2 or o-C6H4(PPh2)2 with NbF5 or TaF5 in anhydrous MeCN solution produce [MF4(diphosphine)2][MF6] (M = Nb or Ta), which have been characterised by microanalysis, IR, (1)H, (19)F{(1)H}, (31)P{(1)H} and (93)Nb NMR spectroscopy. X-ray crystal structures are reported for the isomorphous [MF4{o-C6H4(PMe2)2}2][MF6], which confirm the presence of eight-coordinate (distorted dodecahedral) cations. The corresponding reactions using o-C6H4(AsMe2)2 produced [MF4{o-C6H4(AsMe2)2}2][MF6] which were similarly characterised, including by the X-ray structure of [NbF4{o-C6H4(AsMe2)2}2][NbF6]. These are very rare examples of arsine complexes of high valent metal fluorides. The chloro complexes [NbCl4{o-C6H4(PMe2)2}2]Cl, [TaCl4{o-C6H4(PMe2)2}2][TaCl6], [NbCl4{Me2P(CH2)2PMe2}2][NbCl6] and [MCl4{o-C6H4(AsMe2)2}2][MCl6] were prepared and their structural and spectroscopic properties compared with the fluoride analogues. Attempts to prepare diphosphine complexes of NbOF3 were unsuccessful, but the NbOCl3 complexes, [{{Me2P(CH2)2PMe2}NbOCl3}2{μ-Me2P(CH2)2PMe2}] and [{o-C6H4(PMe2)2}NbOCl3(μ-O)NbCl3(CH3CN){o-C6H4(PMe2)2}] were obtained. X-Ray structures are also reported for [NbCl4{o-C6H4(PMe2)2}2]Cl, [NbCl4{o-C6H4(AsMe2)2}2][NbCl5(OEt)], [NbCl4{o-C6H4(PMe2)2}2][NbOCl4(CH3CN)], [{{Me2P(CH2)2PMe2}NbOCl3}2{μ-Me2P(CH2)2PMe2}] and [{o-C6H4(PMe2)2}NbOCl3(μ-O)NbCl3(CH3CN){o-C6H4(PMe2)2}].

show abstract

“…The germanium is a forth-period post-transition metal which forms complexes with various natural organic ligands, containing O, N and S donor atoms, such as polyphenols and their functional derivatives, polyhydroxycarboxylic acids, aminopolyhydroxycarboxylic acids, thiopolycarboxylic acids, 8-hydroxyquinoline and its derivatives, aromatic derivates of hydroxyaldehydes and hydroxyketones, hydroxyazodyes. [1][2][3][4][5][6][7][8][9] The colored anionic chelates of Ge(IV) form ion-associated complexes with bulky organic cations, like tetradecyl(trihexyl)phosphonium, methyltrioctylammonium, cetylpyridinium, cetyltrimethylammonium, tetraphenylammonium, tetraphenylarsonium. [10][11][12][13][14][15][16] The structure and the properties of the tetrazolium salts determine their ability to form ion-associated complexes.…”

Section: Introductionmentioning

confidence: 99%

Ion-Associated Complex of the Anionic Chelate of Germanium(IV) with Nitro Derivative of the Catechol and the Cation of Monotetrazolium Salt

Stojnova

Lekova

2019

ACSi

View full text Add to dashboard Cite

The formation of an ion-associated complex between of the anionic chelate of germanium(IV) with 4-nitrocatechol (4-NC) and the cation of 3-(2-naphtyl)-2,5-diphenyl-2H-tetrazolium chloride (TV) was investigated by spectrophotometry. The optimum conditions for the chelate formation and the extraction of the complex in the liquid-liquid extraction system Ge(IV)-4-NC-TV-H 2 O-CHCl 3 were established. The validity of Beer's law was checked and some analytical characteristics were calculated. The association process in the aqueous phase and the extraction equilibria were studied and quantitatively characterized by the following key constants: association constant, distribution constant, extraction constant and recovery factor. The molar ratios of the components in the ion-associated complex were determined by independent methods. Based on this, a reaction scheme, a general formula and a structure of the ion-associated complex were suggested.

show abstract

Complexes of germanium(iv) fluoride with phosphane ligands: structural and spectroscopic authentication of germanium(iv) phosphane complexes

Cited by 43 publications

References 35 publications

Coordination chemistry of the main group elements with phosphine, arsine and stibine ligands

Coordination chemistry of the main group elements with phosphine, arsine and stibine ligands

Soft diphosphine and diarsine complexes of niobium(v) and tantalum(v) fluorides: synthesis, properties, structures and comparisons with the corresponding chlorides

Ion-Associated Complex of the Anionic Chelate of Germanium(IV) with Nitro Derivative of the Catechol and the Cation of Monotetrazolium Salt

Contact Info

Product

Resources

About