Zwei neue Phosphorsulfide

The Crystal and Molecular Structure of γ‐P4S6

“…The compound crys- [6, [13][14][15] tallizes as a pseudomerohedral twin in the monoclinic space group P2 1 /m (No. 11) with a = 6.627(3) Å, b = 10.504(7) Å, c = 6.878(3) Å and β = 90.18(4)°.…”

“…Among these, only the crystal structure of β-P 4 S 6 was determined by X-ray diffraction analysis. [6] On the contrary the structures of α-P 4 S 6 , [13] γ-P 4 S 6 , [14] δ-P 4 S 6 , and ε-P 4 S 6 [15] have been characterized only spectroscopically. γ-P 4 S 6 has first been observed by Jason as a product in the oxidation of phosphorus by sulfur at low temperatures (Ͻ 100°C) and in the sulfurization of α-P 4 S 5 by triphenylarsenic sulfide.…”

HgI2⋅As4S4: An Adduct from HgI2 Molecules and Undistorted As4S4 Cages

“…However, a few phosphorus chalcogenide adducts are also known with d 0 ions. [11] In order to suppress the formation of pnicogen-halogen bonds, the metals should be used in the form of metal iodides. Herein, we present our first results for the HgI 2 /As 4 S 4 system.…”

About the Chemistry of Phosphorus Suboxides

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While the molecular phosphorus subsulfides P 4 S 3 , P 4 S 4 , and P 4 S 5 are well known, [1] various attempts to prepare the corresponding molecular phosphorus suboxides have failed so far. In its polymeric form phosphorus suboxide ªP 4 Oº was already mentioned in 1832 [2] but in molecular form P 4 O has been detected only in rare gas matrices.

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“…Dedicated to Professor Ivar Ugi on the occasion of his 70th birthday Although combinatorial chemistry was dominated by solidphase synthesis during its first decade, [1,2] the solution-phase synthesis remains to show indisputable advantages, for example, in respect to the versatility of reactions applicable and the accumulated knowledge of synthetic protocols. Ideally, a synthetic strategy should be able to combine these merits with the advantages of solid-phase synthesis protocols, such as the possibility to use reagents in high excess, to remove them by filtration, and to employ automated multiple synthesizers.…”