778265
双（五甲基环戊二烯基）四氢呋喃钡加合物
别名:
1,2,3,4,5-Pentamethyl-1,3-cyclopentadiene barium complex, Bis(η5-pentamethylcyclopentadienyl)barium, Bis(1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl)barium
表单
solid
反应适用性
core: barium
mp
>300 °C
SMILES字符串
C[C]1[C](C)[C]([C](C)[C]1C)C.C[C]2[C](C)[C](C)[C](C)[C]2C.C3CCOC3.C4CCOC4.[Ba]
InChI
1S/2C10H15.2C4H8O.Ba.2H/c2*1-6-7(2)9(4)10(5)8(6)3;2*1-2-4-5-3-1;;;/h2*1-5H3;2*1-4H2;;;
InChI key
LFDQXDVHCMWHSI-UHFFFAOYSA-N
应用
Cyclopentadienyl compounds of Barium are very commonly used ALD/CVD precursors for depositing Barium containing thin films; example BaTiO3, BaZrO3 films. Cyclopentadienyl groups form weaker bonds with Barium, but have stronger bonds within the ligand thus preventing carbon contamination of the films. Cyclopentadienyl precursors of barium sublime under reduced pressures, with tetrahydrofuran adducts showing volatility also under atmospheric pressure. The tetrahydrofuran adducts loose the coordinated THF when evaporated. Complexes with bulky cyclopentadienyl ligands are more thermally stable and volatile.
Barium containing thin films find applications as host lattices for luminescent materials; high temperature superconductors; high permittivity dielectrics and ferroelectrics.
Barium containing thin films find applications as host lattices for luminescent materials; high temperature superconductors; high permittivity dielectrics and ferroelectrics.
警示用语：
Danger
危险分类
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
4.1B - Flammable solid hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
新产品
此项目有
Timothy P Holme et al.
The journal of physical chemistry. A, 111(33), 8147-8151 (2007-07-28)
A new selection method for atomic layer deposition (ALD) or chemical vapor deposition (CVD) precursors is proposed and tested. Density functional theory was used to simulate Sr and Ba precursors, and several precursors were selected and used to grow films
Vehkamaki; M.;
Electrochemical and Solid-State Letters, 2(10), 504-504 (1999)
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