Beobachtungen �ber das Plasmolyseverhalten vonSpirotaenia condensata Br�b

Krebs, Ingeborg

doi:10.1007/bf01248217

Cited by 3 publications

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“…N3P3CI2Ph4 (Mani, Ahmed & Barnes, 1966) Individual estimated standard deviations are given in parentheses. P(CI2)-N (A) P-CI (,~) I(X=F) 1.596 (8) 1.956 (4) I(X=CI) 1"585 (13) 1"957 (6) NsPsCI6 1"581 (3) 1"993 (2) NsPsCIz(NHipr)4.HCI 1.558 (5) 2.000 (3) NsPsCI2Ph4 1.556 (9) 2.017 (5) The S-F length is 0.040 A shorter than in N3S3F3 (1.610 /~; Krebs, Pohl & Glemser, 1972;Krebs & Pohl, 1973). A similar shortening (0.048/k) is observed in CINS(O)F2 (1.548 A; Oberhammer, 1973) relative to CINSF2 (1.596.3,;Haase, Oberhammer, Zeil, Glemser & Mews, 1970).…”

Section: Bond Lengthsmentioning

confidence: 99%

The crystal and molecular structure of NPCl₂(NSOF)₂ at –160°C

Tucker¹,

Grampel²

1974

Acta Crystallogr Sect B

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Cyclo-tri-#-nitrido-dichlorophosphorusbis(oxofluorosulphur), NPC12(NSOF)2, is monoclinic, space group P21/c, with a= 7.728 (3), b = 7.664 (3), c= 14"097 (4)/~,, fl= 96.01 (2) ° at -160°C. The structure was solved by conventional Patterson and Fourier techniques and refined by block-diagonal leastsquares analysis of 1624 counter intensities measured at -160°C to a final R of 0.107. Mean bond lengths are P-N 1.596 (8), P-C1 1.956 (4), S-F 1.570 (7) and S=O 1.420 (8) A. The N-S bonds in the S-N-S section of the ring have a mean value of 1.568 (9)/~. The mean length of the other N-S bonds is 1.527 (9)/~. The six-membered ring has a twisted chair conformation with the oxygen atoms cis with respect to the ring plane. The molecular dimensions are compared with those in related compounds.

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