用于薄膜的Mo (II) 和W (II) 化合物的合成和挥发性表征
Da-Ae Park1, Ji Young Son1,2, Ji Min Seo1,3
1Thin Film Materials Research Center, Korea Research Institute of Chemical Technology (KRICT),Daejeon 34114, Republic of Korea.
Inorganic chemistry
|October 3, 2023
概括
合成了新的和化合物,并以其挥发性和热稳定性为特征. 化合物在五周内表现出极好的耐用性,表明在材料科学中的潜在应用.
科学领域:
- 有机金属化学 有机金属化学
- 材料科学 材料科学 材料科学
背景情况:
- (Mo) 和 (W) 化合物在各种催化和材料应用中至关重要.
- 了解这些金属复合物的热特性对于它们的实际使用至关重要.
研究的目的:
- 合成和表征新的Mo (II) 和W (II) 基化合物.
- 研究这些合成化合物的热稳定性,挥发性和升华性质.
主要方法:
- 合成四个Mo (II) 和W (II) 复合物与基和胺配体.
- 使用包括结构分析和热重力测量分析 (TGA) 在内的技术进行表征.
- 确定升华温度,蒸汽压力和蒸发的度.
主要成果:
- 化合物Mo ((η3-基) ((CO) 2 ((Tri-MEDA) Br (1) 和W ((η3-基) ((CO) 2 ((Tri-MEDA) Br (3) 呈现出伪八面体的几何形状.
- 对于 (1) 和 (3),TGA显示了高的残留百分比,表明其热稳定性.
- 发现 (1) 和 (3) 两种化合物都具有挥发性,并确定了特定的升华点和蒸发的度.
- 化合物 (3) 在120°C的热应力下,在5周内表现出显著的耐用性.
结论:
- 合成的Mo (II) 和W (II) 化合物具有有利的挥发性和热稳定性.
- 化合物 (3) 在需要高热耐久性的应用中具有显著的潜力.
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