五(二甲基氨基)铌 | 19824-58-9

• 物质功能分类: 有机原料 - 有机金属盐
• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 中文名称: 五(二甲基氨基)铌
• 中文别名: 五(二甲基氨基)铌(V), 99% (METALS BASIS)
• 英文名称: pentakis(dimethylamido)niobium(V)
• 英文别名: penta(dimethylamino)niobium；Nb(NMe₂)₅；Pentakis-dimethylamino-niob；pentakis(dimethylamido)niobium；dimethylazanide;niobium(5+)
• CAS: 19824-58-9
• 化学式: C₁₀H₃₀N₅Nb
• 分子量: 313.288
• InChiKey: ASKHRHGGZBQNEA-UHFFFAOYSA-N

物化性质

• 沸点：
  100℃/0.1mm

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  16
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  5
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 危险等级：
  4.3

SDS

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Section 1: Product Identification
Chemical Name: Pentakis(dimethylamino)niobium(V), 99%
CAS Registry Number: 19824-58-9
Formula: Nb[N(CH3)2]5
EINECS Number: none
Chemical Family: metal amide complex
Synonym: none

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Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 19824-58-9 100% no data no data

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Section 3: Hazards Identification
Forms dimethylamine vapor with moisture. Causes burns to eyes, skin and respiratory tract. May cause
Emergency Overview:
choking, chest pain, dyspnea (breathing dificulty), drowsiness, nausea, and convulsions.
Primary Routes of Exposure: Ingestion, inhalation of dust and vapor
Eye Contact: corrosive vapors cause burns to the eyes.
Skin Contact: Causes burns to the skin.
Inhalation: (As vapor or dust) corrosive to the nose, mucous membranes and respiratory tract.
Ingestion may lead to burning sensation, dizziness, abdominal cramps, vomiting, bloody diarrhea, weakness
Ingestion:
and convulsions.
Corrosive to skin, eyes and respiratory tract. Diethylenetriamine is toxic and corrosive if swallowed, inhaled or
Acute Health Affects:
absorbed through the skin. Induces sleepiness.
Chronic Health Affects: No information available on long-term exposure to this material.
NTP: No
IARC: No
OSHA: No

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SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.

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SECTION 5: Fire Fighting Measures
Flash Point: no data
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: carbon dioxide, dry powder or foam
If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
Special Fire Fighting Procedures:
self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and If involved in a fire, this material may emit toxic and corrosive fumes.
Decomposion Products:
Unusual Fire or Explosion Hazards: Moisture will produce flammable gas.

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SECTION 6: Accidental Release Measures
Small spills can be mixed with vermiculite, sodium carbonate or other suitable non-combustible adsorbent and
Spill and Leak Procedures:
swept up.

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SECTION 7: Handling and Storage
Store in a tightly sealed container away from moisture. Store cold. Handle and store the product under an inert
Handling and Storage:
atmosphere of nitrogen or argon.

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SECTION 8: Exposure Controls and Personal Protection
Eye Protection: Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection: Wear protective clothing and gloves.
Ventilation: Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: Handle the material in an efficient fume hood.
Additional Protection: No additional protection required.

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SECTION 9: Physical and Chemical Properties
Color and Form: purple-black xtl.
Molecular Weight: 313.29
Melting Point: no data
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: no data
Odor: none
Solubility in Water: insoluble

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SECTION 10: Stability and Reactivity
Stability: moisture sensitive
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: contact with moisture
Incompatibility: water, halogens, strong oxidizing agents
Decomposition Products: carbon monoxide, carbon dioxide, niobium oxide and organic fumes

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SECTION 11: Toxicological Information
RTECS Data: No information available in the RTECS files.
Carcinogenic Effects: no data
Mutagenic Effects: no data
Tetratogenic Effects: no data

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SECTION 12: Ecological Information
Ecological Information: No information available

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SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.

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SECTION 14: Transportation
Shipping Name (CFR): Organometallic substance, Solid, Water-reactive, Flammable
Hazard Class (CFR): 4.3
Additional Hazard Class (CFR): 4.1
Packaging Group (CFR): II
UN ID Number (CFR): UN# 3396
Shipping Name (IATA): Organometallic substance, Solid, Water-reactive, Flammable
Hazard Class (IATA): 4.3
Additional Hazard Class (IATA): 4.1
Packaging Group (IATA): II
UN ID Number (IATA): UN# 3396

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SECTION 15: Regulatory Information
TSCA: Not listed in the TSCA inventory
SARA (Title 313): Not regulated under SARA 313
Second Ingredient: none

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2,6-二甲基巯基苯酚 、 五(二甲基氨基)铌 以 甲苯 为溶剂， 以50%的产率得到2,6-dimethylbenzenethiolate;niobium(5+)
  参考文献：
  名称：

  Synthesis of a Homoleptic Niobium(V) Thiolate Complex and the Preparation of Niobium Sulfide via Thio “Sol−Gel” and Vapor Phase Thin-Film Experiments

  摘要：

  Reaction of [Nb(NMe2)(5)] with 10 equiv of 2,6-Me2C6H3SH in toluene results in the formation of red crystals of [Nb(SC6H3Me2-2,6)(5)]. Crystal structure analysis of [Nb(SC6H3Me2-2,6)(5)] showed that the niobium center adopts a distorted trigonal bipyramical geometry. Niobium disulfide, NbS2, has been successfully prepared via a thio "sol-gel" process using [Nb(SC6H3Me2-2,6)(5)] as the metal source. In contrast, vapor phase thin-film studies revealed that [Nb(SC6H3Me2-2,6)(5)] functions as a single-source precursor to NbS films.

  DOI：

  10.1021/ic020097l
• 作为产物：
  描述：

  lithium dimethylamide 、 五氯化铌 以 四氢呋喃 为溶剂， 反应 3.0h， 生成 五(二甲基氨基)铌
  参考文献：
  名称：

  화합물 및 이를 포함하는 박막 형성용 조성물

  摘要：

  这项发明提供了一种表示为化学式的化合物以及利用它制造金属薄膜的方法。

  公开号：

  KR20210099949A

文献信息

• Amidate Complexes of Tantalum and Niobium for the Hydroaminoalkylation of Unactivated Alkenes
  作者：Jean Michel Lauzon、Patrick Eisenberger、Sorin-Claudiu Roşca、Laurel L. Schafer

  DOI：10.1021/acscatal.7b01293

  日期：2017.9.1

  A series of mono(amidate) Ta and Nb complexes with varying steric and electronic properties were synthesized. These complexes were screened as precatalysts for the hydroaminoalkylation of alkenes with secondary amines. Sterically demanding mono(amidate) Ta complexes were determined to be the most effective precatalysts. Isotopic labeling and kinetic studies were undertaken in an effort to elucidate

  合成了一系列具有不同的空间和电子性质的单（氨基）Ta和Nb配合物。筛选出这些络合物作为烯烃与仲胺的加氢氨基烷基化的预催化剂。立体要求苛刻的单（酰胺）Ta配合物被确定为最有效的前催化剂。进行同位素标记和动力学研究以阐明其机理。已表明该反应取决于催化剂和烯烃的浓度，而胺浓度为零级。自由基物质的机械探针支持双电子机制。还合成了Ta和Nb的双（氨基甲酸酯）物种，并观察到两种金属均形成了金属laaziridine。将乙腈插入反应性M–C键可产生具有代表性的五元金属环。
• Accessing Pentagonal Bipyramidal Geometry with Pentadentate Pincer Amido-bis(amidate) Ligands in Group IV and V Early Transition Metal Complexes
  作者：Orhi Esarte Palomero、Richard A. Jones

  DOI：10.1021/acs.organomet.0c00501

  日期：2020.10.26

  carboxamide arms is described. The ligands can be used to promote pentagonal bipyramidal geometries in titanium complexes (2a–2d) [TiL(NMe2)(NHMe2)]. Using the bulkiest ligand (1d), heavier early transition metal elements can be incorporated by the chelate, giving rise to stable mononuclear complexes (3d, 4d: [ML(NMe2)(NHMe2)] (M = Zr, Hf); 5d, 6d: [ML(NMe2)2] (M = Nb, Ta)) bolstering the versatility of this

  描述了一个具有空间庞大的羧酰胺臂的酰胺基双（氨基甲酸酯）亲配体（1a – 1d）[LH 3 ]。配体可用于促进钛络合物（2a - 2d）[TiL（NMe 2）（NHMe 2）]中的五边形双锥体几何形状。使用最大的配体（1d），螯合剂可掺入较重的早期过渡金属元素，从而产生稳定的单核络合物（3d，4d：[ML（NMe 2）（NHMe 2）]（M = Zr，Hf）；5d，6d：[ML（NMe 2）2 ]（M = Nb，Ta））增强了该结合基序的多功能性。
• Highly enantioselective hydroaminoalkylation of secondary amines catalyzed by group 5 metal amides with chiral biarylamidate ligands
  作者：Guofu Zi、Furen Zhang、Haibin Song

  DOI：10.1039/c0cc01265c

  日期：——

  A highly enantioselective group 5 metal amide catalyst system is reported for the hydroaminoalkylation of secondary amines to give chiral amines in good yields with excellent ee values (up to 93%) by loading of 5% precatalyst.

  报告了一种高度对映选择性的 5 族金属酰胺催化剂体系，用于仲胺的加氢氨基烷基化反应，在添加 5%前催化剂的情况下，可得到产率高、ee 值优异（高达 93%）的手性胺。
• Unexpected Formation of (Dimethylaminomethylene)methylamide Complexes from the Reactions between Metal Chlorides and Lithium Dimethylamide
  作者：Xin-Hao Zhang、Shu-Jian Chen、Hu Cai、Hee-Jung Im、Tianniu Chen、Xianghua Yu、Xuetai Chen、Zhenyang Lin、Yun-Dong Wu、Zi-Ling Xue

  DOI：10.1021/om701173m

  日期：2008.3.24

  Reactions of MCl5 (M = Nb, Ta) with LiNMe2 have been found to yield M(NMe2)4(η2-MeNCH2NMe2) (M = Nb, 2a; Ta, 2b) containing a chelating ligand (dimethylaminomethylene)methylamide, as confirmed by NMR spectroscopy, DFT calculations, and their reactivity studies.

  的的MC1反应5（M =铌，钽）与LiNMe 2已发现，得到M（NME 2）4（η 2 -MeNCH 2 NME 2）（M = Nb的，图2a ;钽，2B）含有螯合配位体（ NMR光谱，DFT计算及其反应性研究证实了二甲基氨基亚甲基）甲酰胺。
• Synthesis and Reactivity of Cyclometalated Triamidophosphine Complexes of Niobium and Tantalum
  作者：Malte Sietzen、Hubert Wadepohl、Joachim Ballmann

  DOI：10.1021/acs.inorgchem.5b00333

  日期：2015.4.20

  trimethylphosphine-stabilized complexes [NP(CN)2-κ6-N,P,C,N,C,N]M(PMe3) (5-M). In the case of tantalum, the formation of a dinuclear hydrido complex (6) is observed upon hydrogenation of 4-Ta. In the case of niobium, the metallaziridine substructure in 4-Nb is prone to ring opening via protonation with triphenylsilylamine (Ph3SiNH2), resulting in formation of the corresponding imido complex [PN3-κ4-P,N,N,N]Nb═NSiPh3

  所述triamidophosphine protioligand 1种发生反应与均配型五（二甲氨基）铌和钽[M（NME的前体2）5，其中M =铌，钽]形成的类型的环金属络合物[N 2 PCN-κ 5 - Ñ，Ñ，P，C，N ] M（NMe 2）（2-M）。除了三个酰胺基供体以外，配体主链的一个苄基位置在该反应过程中被去质子化，从而形成新的M–C键。结果，形成金属氮丙啶亚结构，因此三酰氨基膦部分用作四阴离子五齿配体。的二甲基氨基配合物2-M可以被转化成相应的三氟甲磺酸酯[N 2 PCN-κ 5 - Ñ，Ñ，P，Ç，Ñ ] M（OTF）（3-M ）和烷基络合物[N 2 PCN-κ 5 - ñ，ñ，P，通过用三氟甲磺酸三乙基甲硅烷基酯（Et 3 SiO 3 SCF 3），接着是（三甲基甲硅烷基）甲基锂（LiCH 2 SiMe 3）处理，得到C，N ] M（CH 2 SiMe 3）（4-M）。烷基