Li        sub 4/sub4        BaBN        sub 2/sub2                sub 2/sub2        – Structure and Vibrational Spectra

Seidel Stefan; Somer Mehmet; Kiraz KamilRodewald Ute Ch.P?ttgen Rainer

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Li sub 4/sub4 BaBN sub 2/sub2 sub 2/sub2 – Structure and Vibrational Spectra

机译：Li sub 4/sub4 BaBN sub 2/sub2 sub 2/sub2 – 结构和振动谱

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The nitridoborate Li 4 BaBN 2 2 was synthesized from a 4:1 molar ratio of Li 3 BN 2 and Ba 3 BN 2 2 in an arc‐welded niobium ampoule at a maximum annealing temperature of 1173 K. The structure was refined from single‐crystal X‐ray diffractometer data: new type, P 1 , a = 533.9(2), b = 585.0(3), c = 860.6(4) pm, α = 80.72(3), β = 73.84(6), γ = 89.87(4)°, wR 2 = 0.1196, 1429 F 2 values, 50 variables. The Li 4 BaBN 2 2 structure contains two crystallographically independent BN 2 3– units with 134 pm B–N distance, which are slightly bent: 178° for N2–B1–N1 and 175° for N4–B2–N3. Due to the high lithium content both BN 2 3– units have a strongly distorted coordination by 8Li + + 3Ba 2+ . The four crystallographically independent lithium cations show distorted tetrahedral coordination by BN 2 3– units with Li–N distances ranging from 195 to 247 pm. IR and Raman spectra show the typical vibrations of the BN 2 unit along with a well‐resolved splitting of the ν( 10 Β) and ν

机译：以4：1摩尔比的Li 3 [BN] 2和Ba 3 [BN 2 ] 2在电弧焊接铌安瓿中，在最高退火温度为1173 K下合成了次硼酸Li 4 Ba[BN 2 ] 2。根据单晶X射线衍射仪数据细化结构：新型，P 1，a = 533.9（2），b = 585.0（3），c = 860.6（4） pm，α = 80.72（3），β = 73.84（6），γ = 89.87（4）°，wR 2 = 0.1196,1429 F 2值，50个变量。Li 4 Ba[BN 2 ] 2 结构包含两个晶体学独立的 [BN 2 ] 3– 单元，其 B-N 距离为 134 pm，它们略微弯曲：N2-B1-N1 为 178°，N4-B2-N3 为 175°。由于锂含量高，[BN 2 ] 3– 单元在 8Li + + 3Ba 2+ 处具有强烈的失真配位。四个晶体学上独立的锂阳离子显示出 [BN 2 ] 3– 单元的四面体配位失真，Li-N 距离范围为 195 到 247 pm。红外光谱和拉曼光谱显示了 [BN 2] 单元的典型振动以及 ν（ 10 Β）和 ν 的分辨良好

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来源
《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2017年第23期|1831-1835|共5页
作者
Seidel Stefan; Somer Mehmet; Kiraz KamilRodewald Ute Ch.P?ttgen Rainer;
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作者单位

Institut für Anorganische und Analytische ChemieUniversit?t MünsterCorrensstrasse 30,48149,Münster,Germany;

Chemistry DepartmentKoc UniversityRumelifeneri Yolu,34450,Sariyer‐Istanbul,Turkey;

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正文语种英语
中图分类化学;
关键词
Nitridoborate; Crystal structure; Vibrational spectroscopy; Lithium; Boron;

机译：次氮硼酸盐;晶体结构;振动光谱;锂;硼;

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1. ChemInform Abstract: Vibrational Spectra and Force Constants of the Anion (BN2)3‐ in Li3BN2, Ca3B2N4 and Ba3B2N4 [J] . M. SOMER Chem Inform . 1992,第13期

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2. Ba(SbF6)(2)center dot 5XeF(2): First xenon(II) compound with barium. Synthesis, vibrational spectra, and crystal structure [J] . Turicnik A., Benkic P., Zemva B. Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2002,第21期

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3. Ba(SbF6)2×5XeF2: First Xenon(II) Compound with Barium. Synthesis, Vibrational Spectra, and Crystal Structure. [J] . Alenka Turicnik, Primoz Benkic, Boris Zemva Chem Inform . 2002,第52期

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Li sub 4/sub4 BaBN sub 2/sub2 sub 2/sub2 – Structure and Vibrational Spectra

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