View source for Boroselenite

The '''boroselenites''' are heteropoly anion chemical compounds containing [[Selenite (ion)|selenite]] and [[borate]] groups linked by common oxygen atoms. They are not to be confused with the [[boroselenate]]s with have a higher [[oxidation state]] for [[selenium]], and extra [[oxygen]]. If selenium is replaced by sulfur, it would be a [[borosulfite]]. Boroselenites are distinct from [[selenoborates]] in which selenium replaces oxygen in borate, or [[perselenoborates]] which contain Se-Se bonds as well as Se-B bonds. The metal boroselenites were only discovered in 2012.<ref>{{Citation|last1=Kong|first1=Fang|title=Second-Order Nonlinear Optical Materials Based on Metal Iodates, Selenites, and Tellurites|date=2012|url=http://link.springer.com/10.1007/430_2011_65|work=Structure-Property Relationships in Non-Linear Optical Crystals I|volume=144|pages=43–103|editor-last=Wu|editor-first=Xin-Tao|place=Berlin, Heidelberg|publisher=Springer Berlin Heidelberg|doi=10.1007/430_2011_65|isbn=978-3-642-29617-8|access-date=2021-03-09|last2=Sun|first2=Chuan-Fu|last3=Yang|first3=Bing-Ping|last4=Mao|first4=Jiang-Gao|editor2-last=Chen|editor2-first=Ling}}</ref>

== List ==
{| class="wikitable"
!name
!chem
!mw
!crystal system
! space group
!unit cell Å
!volume
!density
!comment
!references
|-
|boroseleniteselenate
|B<sub>2</sub>Se<sub>3</sub>O<sub>10</sub>
|
|[[Monoclinic crystal system|monoclinic]]
|''P''2<sub>1</sub>/''c''
|''a'' = 4.3466, ''b'' = 7.0237, ''c'' = 22.1460, β = 94.922; ''Z'' = 4
|
|
|
|<ref>{{Cite journal|last1=Daub|first1=Michael|last2=Scherer|first2=Harald|last3=Hillebrecht|first3=Harald|date=2015-03-02|title=Synthesis, Crystal Structure, and Spectroscopy of the Mixed-Valent Boroseleniteselenate B 2 Se 3 O 10|url=https://pubs.acs.org/doi/10.1021/ic502916j|journal=Inorganic Chemistry|language=en|volume=54|issue=5|pages=2325–2330|doi=10.1021/ic502916j|pmid=25695146|issn=0020-1669}}</ref>
|-
|
|Se<sub>2</sub>B<sub>2</sub>O<sub>7</sub>
|291.54
|orthorhombic
|''P''2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>
|a=7.4815 b=7.8984 c=9.0478 Z=4
|534.65
|3.622
|[[Nonlinear optics|NLO]] 2.2 x [[Monopotassium phosphate|KDP]]; [[band gap]] 4.64 eV; colourless
|<ref>{{Cite journal|last1=Kong|first1=Fang|last2=Huang|first2=Shu-Ping|last3=Sun|first3=Zhong-Ming|last4=Mao|first4=Jiang-Gao|last5=Cheng|first5=Wen-Dan|date=June 2006|title=Se 2 (B 2 O 7 ): A New Type of Second-Order NLO Material|url=https://pubs.acs.org/doi/10.1021/ja0620991|journal=Journal of the American Chemical Society|language=en|volume=128|issue=24|pages=7750–7751|doi=10.1021/ja0620991|pmid=16771484|issn=0002-7863}}</ref>
|-
|
|Li<sub>2</sub>SeB<sub>8</sub>O<sub>15</sub>
|419.32
|monoclinic
|''P''2<sub>1</sub>/''c''
|a=8.641 b=16.282 c=8.415 ''β''=94.426 Z=4
|1180.4
|2.350
|3D;stable to 280&nbsp;°C; [[band gap]] 4.81 eV
|<ref name=":0">{{Cite journal|last1=Zhang|first1=Jian-Han|last2=Kong|first2=Fang|last3=Yang|first3=Bing-Ping|last4=Mao|first4=Jiang-Gao|date=2012|title=A series of boroselenite-based open frameworks mediated by the cationic sizes of the alkali metals|url=http://xlink.rsc.org/?DOI=c2ce26524a|journal=CrystEngComm|language=en|volume=14|issue=24|pages=8727|doi=10.1039/c2ce26524a|issn=1466-8033}}</ref>
|-
|
|NaSeB<sub>3</sub>O<sub>7</sub>
|246.38
|monoclinic
|''P''2<sub>1</sub>/''c''
|a=4.470 b=15.810 c=8.645 ''β''=98.75 Z=4
|603.8
|2.710
|layered;stable to 290&nbsp;°C; band gap 4.36
|<ref name=":0" />
|-
|
|KSeB<sub>3</sub>O<sub>7</sub>
|262.49
|monoclinic
|''P''2<sub>1</sub>/''c''
|a=4.5569 b=17.601 c=8.669 ''β''=95.92 Z=4
|691.6
|2.521
|layered stable to 280&nbsp;°C; band gap 4.30
|<ref name=":0" />
|-
|
|K<sub>2</sub>Se<sub>3</sub>B<sub>2</sub>O<sub>10</sub>
|496.70
|[[Orthorhombic crystal system|orthorhombic]]
|''Pnma''
|a=14.1842 b=15.7516 c=4.7103 Z=4
|1052.39
|3.135
|1D; stable to 330&nbsp;°C; band gap 4.75 eV
|<ref name=":0" />
|-
|
|RbSe<sub>3</sub>B<sub>2</sub>O<sub>9</sub>(OH)
|
|orthorhombic
|''P''2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>
|a=4.6591 b=11.9288 c=16.332 Z=2
|907.7
|3.695
|band gap 3.79 eV
|<ref name=":1">{{Cite journal|last1=Zhang|first1=Jian-Han|last2=Wang|first2=Qi-Bing|last3=Chen|first3=Chun-Le|last4=Luo|first4=Ju-Xiang|last5=Hu|first5=Chun-Li|last6=Song|first6=Jun-Ling|last7=Mao|first7=Jiang-Gao|date=2018|title=RbSe 3 B 2 O 9 (OH) and CsSe 3 B 2 O 9 (OH): one dimensional boroselenite-based anionic frameworks with second harmonic generation properties|url=http://xlink.rsc.org/?DOI=C8DT00390D|journal=Dalton Transactions|language=en|volume=47|issue=16|pages=5764–5770|doi=10.1039/C8DT00390D|pmid=29637203|issn=1477-9226}}</ref>
|-
|
|CsSe<sub>3</sub>B<sub>2</sub>O<sub>9</sub>(OH)
|
|orthorhombic
|''P''2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>
|a=4.671 b=12.236 c=16.417 Z=2
|1104.84
|3.911
|band gap 4.17 eV; [[Second-harmonic generation|SHG]] 0.8 x KDP
|<ref name=":1" />
|-
|
|Bi<sub>2</sub>[B<sub>2</sub>(SeO<sub>3</sub>)<sub>6</sub>]
|600.67
|monoclinic
|''P''2<sub>1</sub>/''c''
|a=7.4594 b=7.5056 c=13.2486 ''β''=90.04 Z=4
|741.75
|5.379
|[[birefringence]] at 1064&nbsp;nm is 0.090; 0D
|<ref>{{Cite journal|last1=Tang|first1=Ru-Ling|last2=Hu|first2=Chun-Li|last3=Xie|first3=Wei-Jie|last4=Huang|first4=Qian-Ming|last5=Mao|first5=Jiang-Gao|date=2021-03-02|title=Bi 2 [B 2 (SeO 3 ) 6 ]: A Metal Boroselenite with a Unique Zero-Dimensional [B 2 (SeO 3 ) 6 ] 6– Anionic Group and Large Birefringence|url=https://pubs.acs.org/doi/10.1021/acs.inorgchem.1c00210|journal=Inorganic Chemistry|volume=60|issue=6|language=en|pages=3539–3542|doi=10.1021/acs.inorgchem.1c00210|pmid=33650857|s2cid=232088560|issn=0020-1669}}</ref>
|-
|}

== References ==
{{Reflist}}

{{Borates}}
{{Selenites}}

[[Category:Borates]]
[[Category:Selenites]]