Compound between the chalcogen

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With the compound (かるこげんかんかごうぶつ) between the chalcogen, chalcogen (Group 16 elements) reacted each other.

Electronegativity is not negative ^{[note 1]} or a positive (English version) element (different from the halogen having fluorine which is the negative expensive element), but, in the chalcogen, there is extremely a big difference with the thing which has highest electronegativity (oxygen = 3.44) and the thing which is the lowest (polonium = 2.0). A metal property becomes strong when I go to under the chalcogen group (post-transition metal ^{[note 2} white silver as for oxygen as for the nonmetal of the gassiness, one polonium)) . The compound between the chalcogen covalently links and regards various combination as ionic bonding, a metallic bond and a half the sum attribute. ^{[note 3]} [¹]

Table of contents

Compound between the chalcogen

	O	S	Se	Te	Po
O	O2, O3, O4, O8
S	S2O, SO, S2O2, SO2, SO3	S2, S3, S6, S7, S8, S∞
Se	SeO2, SeO3	SexSy	Se6, Se7, Se8, Se∞
Te	TeO, TeO2, TeO3, Te2O5	TexSy	TexSey	Te∞
Po	PoO, PoO2, PoO3	PoS	PoxSey	PoxTey	Po∞

Bond of the compound between the chalcogen

It becomes the ionic bonding from covalent bond (molecules) so as to reach table Nakashita mentioned above. It becomes the metallic bond from ionic bonding when I go among tables aside (when both elements are similar high electronegativity, it becomes the covalent bond, and, in the case of the electronegativity that two elements are different at all namely the electronegativity that one element becomes the ionic bonding when one is already high low, and an element is low at the same level, it is a metallic bond). For example, it is the left frame, and (by combination with oxygen), O₂ and the O₃ are net covalent bond, and, in SO₂ and SO₃, it is a polar molecule. SeO₂ becomes the chain polymer (I extend only to one direction), and, in TeO₂, lamellar polymer (I grow by bidirectional two), PoO₂ are ion fluorite structure (I extend to space polymer, three directions). In (by combination with polonium), PoO₂ and PoS, in ionic bonding, Po_xSe_y and Po_xTe_y, as for metalloid, Po _∞, metal with the youngest row. ^[1]

Compound abstract between the chalcogen

Sulfur カルコゲナイド

Molecular structure of sulfur monoxide.

• Low oxidation sulfur (English version), the S_xOy X:Y ratio are bigger than 1:2
• Oxidation disulfur（English version), S₂O
• Disulfur dioxide（English version), S₂O₂
• Sulfur, SO monoxide
• Sulphur dioxide, SO₂
• Sulfur trioxide, SO₃
• High oxidation sulfur, SOx x>3

セレンカルコゲナイド

Molecular structure of selenium trioxide.

• Selenium dioxide, SeO₂
• Selenium, SeO₃ trioxide
• Metalloid-binding "alloy", Se_xS_y of various density of selenium and sulfur
  • "Sulfuration selenium（English version) ", SeS
  • 2:1 mixture of "selenium disulfide (English version)", -Se₃S₅ circular in the SeS₂, true verge and circular -Se₂S₆
  • Dimeric Se₂S₆ where is circular in "three sulfuration selenium (English version)", the SeS₃, true verge

テルルカルコゲナイド

Crystal structure of tellurium dioxide

• Tellurium (English version), TeO (unstable transition health) monoxide
• Tellurium, TeO₂ dioxide
• Tellurium, TeO₃ trioxide
• Ditellurium, Te₂O₅^[2] pentasulfide
• Metalloid-binding "alloy", Te_xS_y of various density of tellurium and sulfur
• Metalloid-binding "alloy", Te_xSe_y of various density of tellurium and selenium

ポロニウムカルコゲナイド

Polonium unit cell Po dioxide: White, O: Yellow

• Polonium, PoO monoxide
• Polonium dioxide（English version), PoO₂
• Polonium trioxide（English version), PoO₃
• Sulfuration polonium, PoS
• Metalloid-binding "alloy", Po_xSe_y of various density of polonium and selenium
• Metalloid-binding "alloy", Po_xTe_y of various density of polonium and tellurium

Allied item

• Compound between the halogen
• Compound between プニクトゲン

Notes

1. I use electronegativity of the ^ polling throughout.
2. The classification as a post-transition metal of ^ polonium or the semimetal is disputing it.
3. The ^ halogen does not become the compound between the halogen with ionic bonding and the metallic bond for an element with negative enough, and, as for the compound between プニクトゲン, it is ionic bonding and a metallic bond because プニクトゲン (Group 15 elements) is not an element negative too much.

References

1. ^ ^{a b} Holleman, A. F.; Wiberg, E. (2001), Inorganic Chemistry, San Diego: Academic Press, pp. 585-586, ISBN 0-12-352651-5 
2. ^ http://scripts.iucr.org/cgi-bin/paper?S0567740873003092

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