The reaction between selenous acid, H₂SeO₃, potassium dihydrogenmonothiophosphate, KH₂SPO₃, and ascorbic acid, C₆H₈O₆, in the solution of acetic acid proceeds with the formation of monoselenanedi(monothiophosphate) – monoselenanedisulfanediphosphonate, Se(SPO₃)₂ ^4– – SeS₂P₂O₆ ^4–, which in certain conditions is isolated from the reaction mixture as the crystalline salt trans-dipyridine-bis (dimethylglyoximato)cobalt(III) trihydrogenmonoselenane-disulfanediphosphonate dihydrate, [Co(DH)₂Py₂]H₃SeS₂P₂O₆ · 2H₂O. The isolated compound is characterized by the chemical analysis, XRD pattern, thermogravimetric and differential thermal analysis methods, and IR spectra. The dehydration of the isolated compound proceeds at a temperature of ~55–100 °C and its decomposition begins at ~120 °C.
The final product of [Co(DH)₂Py₂]H₃SeS₂P₂O₆ · 2H2O decomposition at high temperature is cobalt(II) metaphosphate, Co(PO₃)₂. The IR spectra of the isolated compound showed the maxima of absorption bands characteristic of monoselenanedisulfanediphosphonate anion at 255; 278; 360, 386, 390; 424, 442; 470, 514, 589; 652, 693, 744, 769; 917, 953, 980, 1 037; 1 070, 1 092, 1 147, 1 173 and 1 238 cm^–1; they are assigned to δ (S–Se–S), ν (Se–S), γ_r (PO₃), ν (P–S), δ_as (O–P–O), δ_s (O–P–O), ν_s (P–O), ν_as (P–O), respectively.

Issues:

2017 - Vol.28
No. 1, No. 2, No. 3, No. 4

2016 - Vol.27
No. 1, No. 2, No. 3, No. 4

2015 - Vol.26
No. 1, No. 2, No. 3, No. 4

2014 - Vol.25
No. 1, No. 2, No. 3, No. 4

2013 - Vol.24
No. 1, No. 2, No. 3, No. 4

2012 - Vol.23
No. 1, No. 2, No. 3, No. 4

2011 - Vol.22
No. 1, No. 2, No. 3, No. 4

2010 - Vol.21
No. 1, No. 2-4

2009 - Vol.20
No. 1, No. 2, No. 3, No. 4

2008 - Vol.19
No. 1, No. 2, No. 3-4

2007 - Vol.18
No. 1, No. 2, No. 3, No. 4

2006 - Vol.17
No. 1, No. 2-3, No. 4

2005 - Vol.16
No. 1, No. 2, No. 3-4

2004 - Vol.15
No. 1, No. 2, No. 3, No. 4

2003 - Vol.14
No. 1, No. 2, No. 3, No. 4

2002 - Vol.13
No. 1, No. 2, No. 3, No. 4

2001 - Vol.12
No. 1, No. 2, No. 3, No. 4