A thermochemical study of K2M(IO3)4·2H2O(M=Mg2+, Ni2+, Zn2+)

Hu, Juncheng; Hongwen, Wan; Xu, Maotian; Wang, Tianzhi; Yu, Yun; Song-Sheng, Qu

doi:10.1016/s0040-6031(99)00404-9

Cited by 2 publications

(3 citation statements)

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“…Single crystals of KIO 3 grown from aqueous solution develop as domained crystals of poor quality but the quality of the crystals obtained can be affected by additional reagents such as HIO 3 , see: Hamid (1974); Lü & Zhang (1987). For related structures, see Vinogradov et al (1979); Maneva & Rabadjieva (1994); Juncheng et al (2000); Lepeshkov et al (1977); Lucas (1984). For hydrogen bonding, see: Desiraju & Steiner (1999).…”

Section: Related Literaturementioning

confidence: 99%

“…The compound of the same chemical composition has already been synthesized (Maneva & Rabadjieva, 1994;Juncheng et al, 2000;Vinogradov et al, 1979) along with similar compounds with different central atoms instead of Zn: According to the powder diffraction experiments, Ni and Co analogoues are isostructural to Zn (Maneva & Rabadjieva, 1994).…”

Section: S1 Commentmentioning

confidence: 99%

“…(However, the powder diffractograms have been given only for the Ni and Co compounds in the latter reference.) Juncheng et al (2000) investigated thermodynamic properties of K 2 ME(IO 3 ) 4 .2H 2 O where ME=Mg, Ni and Zn. Lepeshkov et al (1977) studied the systems Zn(IO 3 ) 2 -KIO 3 -H 2 O as well as Co(IO 3 ) 2 -KIO 3 -H 2 O at 50°C.…”

Section: S1 Commentmentioning

confidence: 99%

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Dipotassium zinc tetraiodate(V) dihydrate

2010

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Key indicators: single-crystal X-ray study; T = 295 K; mean (Zn-O) = 0.005 Å; R factor = 0.019; wR factor = 0.055; data-to-parameter ratio = 15.6.The title compound, K 2 Zn(IO 3 ) 4 Á2H 2 O, contains two symmetry-independent K and I atoms. These atoms, as well as the Zn atom, are coordinated by shared O atoms and, moreover, the Zn atom is coordinated by two water molecules in trans positions. The K, Zn and water O atoms atoms are situated in special positions on twofold symmetry axes. The hydrogen atoms are involved in strong O-HÁ Á ÁO hydrogen bonds and O-HÁ Á ÁI interactions also occur. The crystals of the title compound are, in general, twinned, but the sample used for this experiment was free of twinning. Related literatureSingle crystals of KIO 3 grown from aqueous solution develop as domained crystals of poor quality but the quality of the crystals obtained can be affected by additional reagents such as HIO 3 , see: Hamid (1974); Lü & Zhang (1987). For related structures, see Vinogradov et al. (1979); Maneva & Rabadjieva (1994); Juncheng et al. (2000); Lepeshkov et al. (1977); Lucas (1984). For hydrogen bonding, see: Desiraju & Steiner (1999). ExperimentalCrystal data Table 1 Hydrogen-bond geometry (Å , ).

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