Ueber die Unterphosphorsäure

Abstract

Hiemu Tafel 1% Figur 1 bie 4.)E r s t e A b h a n d l u n g .-Wird Phosphor bei Gegenwart von Wasser so lange der LuR ausgesetzt, bis er mBglichst oxydirt ist, d. h. bis die Flussigkeit aus der Luft keinen Sauerstoff mehr aufnimmt, so erhiilt men die sogenannte P e 1 1 e t i e r'sche SBure (Acide phosphatique), welche eine constante Sauerstoffmengo enthalten sol1 *). Es wurde deshalb diese Slure von verschiedenen Forschern als eine eigene Oxydationsstufe des Phosphors, von anderen als eine Verbindung von Phosphoroxyd oder von phosphoriger Saure mit Phosphorsaure betrachtet. Die Salze , welche F o u r c r o y und V a u q U e 1 in mittelst dieser Siiure und Kali resp. Natron dargestellt haben (siehe G m e 1 i n bei den betr phosphorigsauren Salzen), konnten den gesuchten Beweis nicht liefern, da sie nicht rein gewesen, auch splter, wie es scheint, nicht mehr dargestellt worden $ind. Nach T h 6 n a r d enthalt die P e 1 I e t i e r'sche Saure 47 pC. Phosphor und 53 pC. Sauerstoff; nach D u I o ng 47,85 pC. Phosphor und 52,15 pC. Sauerstoff, worms dieser die Formel PpOB ableitete, welche 46,26 pC. Phosphor und 53,74 pC. Seuerstoff verlangt ; die D u 1 o D g'schen Zahlen warden O b igens eben so gut zu der Formel PO, passen, welche 49,2 pC. Phosphor und 50,8 pC. Sauerstoff erfordert. *) Biehe Gimelin-Kraut's Handbaah, 6. A d . 1, 3. Abth. 118, bei phosphoriger Btlare.

Adenosine hypodiphosphate ester, an analogue of ADP: analysis of the adenine–hypodiphosphate interaction mode in hypodiphosphate nucleotides and adenine salts

“…Salzer's discovery of hypodiphosphoric acid (H 4 P 2 O 6 ) provided a new class of phosphorus compounds with a P-P bond (Salzer, 1877). Despite the fact that initial studies focused on synthetic methods (Van Name & Huff, 1918;Probst, 1929;Leininger & Chulski, 1949), the final formula and formation mechanism were not proposed until almost 80 years later (Miłobę dzki, 1950).…”

New Quaternary Alkali‐Metal Hypodiphosphate Hydrates: Preparation, Crystal Structure, Vibrational Spectrum, and Thermal Behavior of K4P2O6·8H2O and Na2K2P2O6·8H2O in Comparison to Na4P2O6·10H2O

“…Until today the described main group hypodiphosphates have only academic interest with the exception of diammonium hypodiphosphate, (NH 4 ) 2 H 2 P 2 O 6 , its ferroelectricity has been recently discovered 1. Thus, it is not surprising that especially structure related investigations are scarce and scattered in literature although hypodiphosphoric acid (H 4 P 2 O 6 ) was described already in 1877 by Salzer 2. The first comprehensive contribution on the syntheses and properties of alkali‐metal hypodiphosphates was published by Müller in 1913 3.…”

Tetrakis(trimethysilyl)hypophosphate P2O2(OTMS)4: Synthesis, reactivity and application as flame retardant

“…Although inorganic hypophosphates are known for a long time, few organylhypophosphates P 2 O 2 (OR) 4 have been reported (Scheme 1). The first reaction leading to hypophosphoric acid was reported in 1859 [11], and the salt was characterized in 1877 by Salzer [12]. Since the 1960s, few studies were performed on hypophosphates, probably due to the limited accessibility of these types of compounds; whereas for the preparation of diphosphane oxides R 2 (O)P-P(O)R 2 , various methods are known [13,14], only two different reactions are reported to access either hypophosphoric acid [15,16] or tetraalkylhypophosphates [17,18].…”