Synthesis and Structure of Sr2VN3 and Ba2VN3, Two New Nitridovanadates
Synthesis and Structure of Sr2VN3 and Ba2VN3, Two New Nitridovanadates
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两种新型硝基钒酸盐Sr2VN3和Ba2VN3的合成与结构
DOI：
10.1021/ic00119a012
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
D. Siddons
中科院分区：
文献类型：
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作者：
D. Gregory;M. G. Barker;P. Edwards;D. Siddons
用粉末X-射线衍射仪对Ba3N_2和VN在不锈钢坩埚中的密封性进行了表征。Sr2VN3属于Cite空间群(a=5.71036(9)k，b=10.9521(2)A，c=12.2881(2)A，Y3=90.986(1)，Z=8)，与Sr3TaN3同构。Ba2VN3属于Cmca空间群(a=5.8614(4)A，b=11.4682(7)A，c=12.9121(9)A，Z=8)，与Rb2Ti03同构。在每个结构中，钒(V)以扭曲的四面体与氮配位，形成平行于a的[VN3]4-单元的无限一维链。这些A2VN3材料(A=Sr，Ba)中的锶和钡原子与七个氮原子配位。这些材料是第一个报道的含有V5+的II族三元氮化物。
Ba3N2 with VN in sealed stainless steel crucibles and characterized by powder X-ray diffraction. Sr2VN3 crystallizes in the space group Cite (a= 5.71036 (9) k, b= 10.9521 (2) A, c= 12.2881 (2) A, y3= 90.986 (1), Z= 8) and is isostructural with Sr3TaN3. Ba2VN3 crystallizes in the space group Cmca (a= 5.8614 (4) A, b= 11.4682 (7) A, c= 12.9121 (9) A, Z= 8) and is isostructural with Rb2Ti03. In each structurevanadium (V) is coordinated to nitrogen in distorted tetrahedra, forming infinite one-dimensional chains of [VN3] 4-units running parallel to a. The strontium and barium atoms in these A2VN3 materials (A= Sr, Ba) are coordinated to seven nitrogens. These materials are the first reported group II ternary nitrides to contain V5+.