Disorder in the structure of dibromodiammineplatinum(II) tetrabromodiammineplatinum(IV)

Hall, David R.; Williams, P. P.

doi:10.1107/s0365110x58001675

Cited by 18 publications

(5 citation statements)

References 1 publication

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“…(ii) The ptlV-Br ... Pt n alternations are very close to those reported earlier by Hall & Williams (1958), ptIV-Br = 2.485 (4)A and Pt n...Br = 3.068 (4)A. Compared to other 'dicationic' ptIV-Br ...Pt n chains the alternation and the sum of ptxv-Br and Pt u... Br distances are 'normal' (Keller, 1981).…”

supporting

confidence: 90%

“…Since there is only a single Pt site in the lattice the earlier Fig. 1 in the paper by Hall & Williams (1958) is in error and should be replaced by Fig. 1 shown here.…”

mentioning

confidence: 97%

“…The title compound has been the subject of several investigations in recent years: After its first preparation (Grinberg & Filinov, 1937)three different X-ray investigations (Brosset, 1948;Hall & Williams, 1958;Wall6n, Brosset & Vannerberg, 1961), three reports on its d.c. conductivity (Thomas & UnderhiU, 1971;Interrante, Browall & Bundy, 1974;) and a detailed analysis of its resonance Raman (RR) spectra (Clark & Turtle, 1978) were published. Nevertheless, some doubts concerning the correct structure of the compound remained after the most recent structural paper (Wall6n, Brosset & Vannerberg, 1961).…”

mentioning

confidence: 99%

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Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr₂(NH₃)₂}{PtBr₄(NH₃)₂}]

Keller¹,

Keppler²,

Ledezma-Sanchez³

et al. 1981

Acta Crystallogr Sect B

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supporting

confidence: 90%

“…Since there is only a single Pt site in the lattice the earlier Fig. 1 in the paper by Hall & Williams (1958) is in error and should be replaced by Fig. 1 shown here.…”

mentioning

confidence: 97%

mentioning

confidence: 99%

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Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr₂(NH₃)₂}{PtBr₄(NH₃)₂}]

Keller¹,

Keppler²,

Ledezma-Sanchez³

et al. 1981

Acta Crystallogr Sect B

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“…2. Bond lengths and angles are listed in (Brosset, 1948;Hall & Williams, 1958;Ryan & Rundle, 1961;Craven & Hall, 1961, 1966Wallen, Brosset & Vannerberg, 1962), and in every case the odd layer lines about the chain axis were observed to be continuous. Invariably the subcell structure as deduced from the even-layer reflexions shows a sixcoordinate complex ion in which the axial ligands are half-weight halogen atoms, other atoms usually appearing to be normal.…”

Section: By Kevin Lbrown and David Hallmentioning

confidence: 99%

Tetrakis(ethylamine)platinum(II) dibromotetrakis(ethylamine)pla tinum(IV) tetrabromide tetrahydrate

Brown¹,

Hall²

1976

Acta Crystallogr Sect B

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“…Bond distances and angles with their estimated standard deviations are listed in Table 2. The structures of a number of similar mixed-valence compounds of Pt or Pd have been studied (Brosset, 1948;Hall & Williams, 1958;Ryan & Rundle, 1961;Craven & Hall, 1961, 1966Wallen, Brosset & Vannerberg, 1962; Brown & Hall, 1976; Matsumoto, Yamashita & Kida, 1978b), and in every case the odd layer lines about the chain axis were diffuse and continuous, except for our three complexes [Pt (tn) …”

mentioning

confidence: 99%

Structure of a Pt^II–Pt^IV mixed-valence complex, bis(ethylenediamine)platinum(II) bis(ethylenediamine)diiodoplatinum(IV) perchlorate, [Pt(en)₂] [Pt(en)₂I₂](ClO₄)₄

Matsumoto¹,

Yamashita²,

Kida³

et al. 1979

Acta Crystallogr Sect B

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and tetragonal-bipyramidal [Pt(en)212] 2+ units, the disorder arising from a stacking mistake involving displacement of the chain by one-half of the repeating unit. The oxidation number of each Pt atom can be assigned on the basis of the Pt-I distances. However, judging from the ratios of the PtW--I and ptn-I distances, the difference of the oxidation states between Pt n and Pt ~v atoms is much reduced compared with those of the chloro and bromo analogs.Introduction. In the previous study in this series, we determined the crystal structures of [Pt(tn) Golden lustrous platy crystals of the title compound were obtained from dilute perchloric acid solution (Matsumoto, Yamashita & Kida, 1978a). Crystals exhibited a remarkable dichroism: they are dark-brown with polarized light along the b axis and light-brown with polarized light perpendicular to the b axis. Rotation and Weissenberg photographs about the b axis showed normal sharp reflections on even layers but only diffuse and continuous reflections on odd layers. These reflections are indexed with respect to the subcell for which b is halved (b = 5.820 A). In the subcell unit, the iodine atoms have half-weight. The dimensions of the single crystal used for the intensity measurements were 0.1 x 0.54 x 0.24 mm. Intensity data were collected on a Syntex Pi four-circle diffractometer with Mo Ka radiation monochromated by a graphite plate.850 independent reflections within a range of 20 < 52 ° were collected by the 0-20 scan technique with a variable scan rate of 4.0-24.0 ° min -~. 738 reflections with I > 3.00o(1) were considered as observed and were used for the analysis. Lorentz and polarization corrections were applied for the data. Corrections for the absorption effect were made (Busing & Levy, 1957).The structure was solved by a combination of minimum-function and heavy-atom methods. Systematic subcell absences found on the Weissenberg photographs were consistent with space groups C2, Cm or C2/m. Of these, C2 was selected on the basis of the restriction on the crystal packing of the counter ions and the conformation of the ethylenediamine, and was later confirmed in the course of the structure determination. The positions of all non-hydrogen atoms were obtained from the minimum-function maps. Block-diagonal least-squares refinement of the atomic coordinates and isotropic thermal parameters was carried out, and the discrepancy indices R 1 = Y I IFolIFcll/IFo I and R2 = [Y w(IFol --IFcl)were 9.06 and 11.27% respectively. The refinement then proceeded with anisotropic temperature factors for the Pt, I and CI atoms, and the final discrepancy indices were R 1 = 5.41 and R 2 = 6.57%. A final difference Fourier synthesis showed no significant feature. In the least-squares procedure, the weighting scheme was w = (1.5 + 0.0671Fol) -1. The atomic scattering factors were taken from International Tables for X-ray Crystallography (1974) (2) 1023 (13) 3030 (41) 4624 (32) 3.4 (4) 0 (3) 1933 (16) 5285 (95) 6389 (38) 7.1 (7) 0 (4) 1836 (13) 5340 (80) 3183 (31) 5.1 (5) N (1) 1153...

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Disorder in the structure of dibromodiammineplatinum(II) tetrabromodiammineplatinum(IV)

Abstract: The chain structure previously reported is confirmed, but disorder in the stacking of the chains has been observed.

Cited by 18 publications

References 1 publication

Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr₂(NH₃)₂}{PtBr₄(NH₃)₂}]

Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr₂(NH₃)₂}{PtBr₄(NH₃)₂}]

Tetrakis(ethylamine)platinum(II) dibromotetrakis(ethylamine)pla tinum(IV) tetrabromide tetrahydrate

Structure of a Pt^II–Pt^IV mixed-valence complex, bis(ethylenediamine)platinum(II) bis(ethylenediamine)diiodoplatinum(IV) perchlorate, [Pt(en)₂] [Pt(en)₂I₂](ClO₄)₄

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Disorder in the structure of dibromodiammineplatinum(II) tetrabromodiammineplatinum(IV)

Abstract: The chain structure previously reported is confirmed, but disorder in the stacking of the chains has been observed.

Cited by 18 publications

References 1 publication

Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr2(NH3)2}{PtBr4(NH3)2}]

Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr2(NH3)2}{PtBr4(NH3)2}]

Tetrakis(ethylamine)platinum(II) dibromotetrakis(ethylamine)pla tinum(IV) tetrabromide tetrahydrate

Structure of a PtII–PtIV mixed-valence complex, bis(ethylenediamine)platinum(II) bis(ethylenediamine)diiodoplatinum(IV) perchlorate, [Pt(en)2] [Pt(en)2I2](ClO4)4

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Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr₂(NH₃)₂}{PtBr₄(NH₃)₂}]

Redetermination of the structure of trans-diamminedibromoplatinum(II)–trans-diamminetetrabromoplatinum(IV), trans-[{PtBr₂(NH₃)₂}{PtBr₄(NH₃)₂}]

Structure of a Pt^II–Pt^IV mixed-valence complex, bis(ethylenediamine)platinum(II) bis(ethylenediamine)diiodoplatinum(IV) perchlorate, [Pt(en)₂] [Pt(en)₂I₂](ClO₄)₄