The crystal structure of compounds with (N–P)nrings. II. Sodium trimetaphosphimate tetrahydrate Na3(NHPO2)3

Olthof, R.; Migchelsen, T.; Vos, A.

doi:10.1107/s0365110x65003948

Cited by 26 publications

(15 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the IR spectrum of compound III the 6 3 mode of H 2 O appear as a doublet at 3455 and 3372 cm − 1 and the 6 2 mode as triplet at 1694, 1661 and 1639 cm − 1 . This splitting of the fundamental vibrations are due to the wide variation in the hydrogen bond lengths, where the O---O ranges from 2.821 to 4.144 A , [17]. The librational modes of H 2 O are observed as weak to medium intense bands in the region 806 -802 cm − 1 .…”

Section: Vibrations Of Water Moleculesmentioning

confidence: 95%

“…The starting material Na 2 (PO 2 NH) 3 .4H 2 O (compound III) was prepared by the method reported by Olthof et al [17]. To an acidified solution of this compound, an aqueous solution of AgNO 3 is added to get Ag 3 (PO 2 NH) 3 (compound I) [21].…”

Section: Methodsmentioning

confidence: 99%

“…The trimetaphosphimate anion is a cyclic system formed by three regularly alternating slightly distorted PO 2 NH tetrahedra. The confirmation of the ring in the chair form with symmetry close to C 3v has been established by X-ray structure analysis [17] and from the vibrational spectra of alkali metal trimetaphosphimates [9]. From a study of the vibrational spectra it is known that the tetrametaphosphimate anion in solution has S 4 symmetry and that in salts it has two kinds of structures, viz., C 2h symmetry and S 4 symmetry [14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Vibrational analysis of Ag3(PO2NH)3, Na3(PO2NH)3.H2O, Na3(PO2NH)3.4H2O, [C(NH2)3]3(PO2NH)3.H2O and (NH4)4(PO2NH)4.4H2O

John¹,

Philip²,

Stock³

et al. 2001

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

View full text Add to dashboard Cite

FT IR and FT Raman spectra of Ag 3 (PO 2 NH), (Compound I), Na 3 (PO 2 NH) 3 4 .4H 2 O (Compound V) are recorded and analyzed on the basis of the anions, cations and water molecules present in each of them. The PO 2 NH − anion ring in compound I is distorted due to the influence of Ag + cation. Wide variation in the hydrogen bond lengths in compound III is indicated by the splitting of the 6 2 and 6 3 modes of vibration of water molecules. The NH 4 ion in compound V occupies lower site symmetry and exhibits hindered rotation in the lattice. The correlations between the symmetric and asymmetric stretching vibrations of P N P bridge and the P N P bond angle have also been discussed.

show abstract

Section: Vibrations Of Water Moleculesmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Vibrational analysis of Ag3(PO2NH)3, Na3(PO2NH)3.H2O, Na3(PO2NH)3.4H2O, [C(NH2)3]3(PO2NH)3.H2O and (NH4)4(PO2NH)4.4H2O

John¹,

Philip²,

Stock³

et al. 2001

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

View full text Add to dashboard Cite

show abstract

“…X-ray diffraction analyses have been carried out on trimeric phosphonitrilic fluoride (Dougill, 1963) and chloride (Cipollini, Pompa & Ripamonti, 1958;Pompa & Ripamonti, 1959;Giglio, 1960;Wilson & Carroll, 1960), on 2,2-diphenyl-4,4,6,6-tetrachlorocyclotriphosphazatriene (Mani, Ahmed & Barnes, 1965) and on sodium trimetaphosphimate tetrahydrate (Olthof, Migchelsen and Vos, 1965). In order to obtain further information on this class of compound and to examine the influence of substituents on the molecular conformation the structure of trimeric phosphonitrilic bromide (TPB) was undertaken.…”

Section: Introductionmentioning

confidence: 99%

Crystal structure of trimeric phosphonitrilic bromide

Giglio¹,

Puliti²

1967

Acta Cryst

View full text Add to dashboard Cite

The structure of trimeric phosphonitrilic bromide was refined by three-dimensional differential Fourier synthesis. The crystals are orthorhombic, space group Pcmn, with four molecules in a cell with dimensions: a= 6-63 + 0.01, b= 13.36 + 0.02, c = 14.43 + 0.02 A,. The (PN)3 ring is not planar and has a slight chair conformation similar to that found for trimeric phosphonitrilic chloride. No indications were obtained on the equivalence of the PN bond lengths because of the high values of the corresponding standard deviations. Some short intermolecular approaches have been found. The geometry of the molecule is compared with that of other similar compounds.

show abstract

“…Tetranatrium-bis(trimetaphosphimato)cuprat(II)-Decahydrat, Na 4 (6), c = 966,10(6) pm, a = 94,840(5), b = 108,652 (6), c = 118,588(6)°, Z = 1). Die P 3 N 3 -Ringe in den Trimetaphosphimat-Ionen liegen in einer leicht verzerrten Sofakonformation vor.…”

unclassified

Synthese, Kristallstruktur und Eigenschaften von Tetranatrium-bis(trimetaphosphimato)cuprat(II)-Decahydrat, Na4{Cu[(PO2NH)3]2} · 10 H2O

Correll

Schnick

2000

Z. anorg. allg. Chem.

View full text Add to dashboard Cite

Inhaltsu È bersicht. Tetranatrium-bis(trimetaphosphimato)cuprat(II)-Decahydrat, Na 4 {Cu[(PO 2 NH) 3 ] 2 }´10 H 2 O, wurde durch Umsetzung einer wa È ssrigen Lo È sung von Na 3 (PO 2 NH) 3´4 H 2 O mit Cu(NO 3 ) 2´3 H 2 O im molaren Verha È ltnis 2 : 1 dargestellt. Die Struktur von Na 4 {Cu[(PO 2 NH) 3 ] 2 }´10 H 2 O (1) wurde durch EinkristallRo È ntgenstrukturanalyse ermittelt (P 1, a = 912,51(6), b = 932,14(6), c = 966,10(6) pm, a = 94,840(5), b = 108,652(6), c = 118,588(6)°, Z = 1). Die P 3 N 3 -Ringe in den Trimetaphosphimat-Ionen liegen in einer leicht verzerrten Sofakonformation vor. Die Konformation der Ringe la È ût sich mit Hilfe der Torsionswinkel, der Displacement-Asymmetrie-und der Puckering-Parameter beschreiben. Die TrimetaphosphimatIonen koordinieren Cu 2+ als zweiza È hnige Liganden und bilden zusammen mit Wassermoleku È len komplexe Anionen der Zusammensetzung {Cu[(PO 2 NH) 3 ] 2´2 H 2 O} 4± , welche im Kristall u È ber Wasserstoffbru È cken (N±H´´´O und O±H´´´O) und durch Koordination u È ber Na + zu einem dreidimensionalen Netzwerk verknu È pft werden. Synthesis, Crystal Structure, and Properties of Tetrasodium Bis(trimetaphosphimato)cuprate(II) Decahydrate, Na 4 {Cu[(PO 2 NH) 3 ] 2 }´10 H 2 O Abstract. Tetrasodium bis(trimetaphosphimato)cuprate(II) decahydrate, Na 4 {Cu[(PO 2 NH) 3 ] 2 }´10 H 2 O, was obtained by the reaction of an aqueous solution of Na 3 (PO 2 NH) 3´4 H 2 O with Cu(NO 3 ) 2´3 H 2 O (molar ratio 2 : 1). The structure of Na 4 {Cu[(PO 2 NH) 3 ] 2 }´10 H 2 O (1) was solved by single-crystal X-ray methods (P 1, a = 912.51(6), b = 932.14(6), c = 966.10(6) pm, a = 94.840(5), b = 108.652(6), c = 118.588(6)°, Z = 1). The P 3 N 3 rings of the trimetaphosphimate ions exhibit a slightly distorted sofa conformation. The conformation of the anions have been analysed using torsion angles, displacement asymmetry parameters, and puckering parameters. The trimetaphosphimate ions act as bidentate ligands of Cu 2+ . With additionally coordinated water molecules, anionic complexes {Cu[(PO 2 NH) 3 ] 2´2 H 2 O} 4± are formed. In the crystal these complexes are interconnected by N±H´´´O und O±H´´´O hydrogen bonds and they coordinate the Na + . Thus, a three-dimensional network is formed.

show abstract

The crystal structure of compounds with (N–P)_nrings. II. Sodium trimetaphosphimate tetrahydrate Na₃(NHPO₂)₃

Cited by 26 publications

References 2 publications

Vibrational analysis of Ag3(PO2NH)3, Na3(PO2NH)3.H2O, Na3(PO2NH)3.4H2O, [C(NH2)3]3(PO2NH)3.H2O and (NH4)4(PO2NH)4.4H2O

Vibrational analysis of Ag3(PO2NH)3, Na3(PO2NH)3.H2O, Na3(PO2NH)3.4H2O, [C(NH2)3]3(PO2NH)3.H2O and (NH4)4(PO2NH)4.4H2O

Crystal structure of trimeric phosphonitrilic bromide

Synthese, Kristallstruktur und Eigenschaften von Tetranatrium-bis(trimetaphosphimato)cuprat(II)-Decahydrat, Na4{Cu[(PO2NH)3]2} · 10 H2O

Contact Info

Product

Resources

About