模态乙烯 (IV) - 双化物-氧化物-N,N-二甲基-甲化物
Christopher Jan Klecker1, Hans Reuter1
1Chemistry, Osnabrück University, Barbarastrasse 7, 49069 Osnabrück, Germany.
概括
一种新的二维乙烯 (IV) 化合物被合成并进行结构特征. 晶体结构显示出独特的Sn-OH环,证实了有机蛋白化学中的转增强作用.
科学领域:
- 有机金属化学 有机金属化学
- 无机化学 无机化学 有机化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 含有化物和氧化物联体的二元性有机素 (IV) 化合物是已知的易斯酸添加物.
- 这些化合物的结构特征,特别是Sn-OH环,影响它们的化学性质.
- 了解这些结构是预测反应性和稳定性的关键.
研究的目的:
- 为了合成和表征一种新的二次性乙烯 (IV) 化合物.
- 为了阐明合成化合物的晶体结构.
- 调查单机蛋白 (IV) 系统中转增强效应的存在和影响.
主要方法:
- 从乙烯 (IV) 化物和N,N-二甲基甲化物 (DMF) 中合成Di-μ-氧化物-bis-[di-bromido-(di-methyl-formamide-κO) ethyl-tin(IV) ].
- 单晶X射线衍射分析以确定分子和晶体结构.
- 结构参数与相关的二维性有机 (IV) 化合物的比较.
主要成果:
- 确定了[Sn2Br4{C2H5) 2{OH) 2{C3H7NO) 2}的晶体结构,显示了两个八面体协调的Sn原子,由桥接氧化组连接在一起.
- 观察到一个中心对称的,四个成员的象形状的Sn-OH环,具有明显的Sn-O键长度.
- 较短的Sn-O键被发现是转向乙基的,支持转增强效应.
结论:
- 合成的化合物表现出典型的结构特征二维路易斯基稳定单有机素 ((IV) -二化物-氧化物.
- 在Sn-OH环中观察到的转增强效应为单有机素 (IV) 化合物中这种现象提供了进一步的证据.
- 结构比较突出了不同维度有机 (IV) 化物-氧化物系统的相似之处和差异.
相关概念视频
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