二氯二茂钛

二氯二茂钛



IUPAC名 Dichloridobis(η⁵-cyclopentadienyl)titanium
识别
CAS号	1271-19-8 ^Y
PubChem	5284468
ChemSpider	34981141
SMILES	[cH-]1cccc1.[cH-]1cccc1.Cl[Ti+2]Cl
InChI	1/2C5H5.2ClH.Ti/c21-2-4-5-3-1;;;/h21-5H;21H;/q2-1;;;+4/p-2/r2C5H5.Cl2Ti/c21-2-4-5-3-1;1-3-2/h21-5H;/q2*-1;+2
InChIKey	YMNCCEXICREQQV-JUFMQDBHAK
RTECS	XR2050000
性质
化学式	C₁₀H₁₀Cl₂Ti
摩尔质量	248.96 g·mol⁻¹
外观	亮红色固体
密度	1.60 g/cm³
熔点	289 °C（562 K）
溶解性（水）	水解
结构
晶体结构	三斜晶系
配位几何	四面体形
危险性
警示术语	R：R37, R38
安全术语	S：S36
NFPA 704	0 2 1
相关物质
相关化学品	二茂铁二氯二茂锆二氯二茂铪二氯二茂钒二氯二茂铌二氯二茂钽二氯二茂钼二氯二茂钨 TiCl₄
若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

二氯二茂钛（英語：Titanocene dichloride）是一种化学式为(η⁵-C₅H₅)₂TiCl₂的有机钛化合物（英语：organotitanium compound），常写为Cp₂TiCl₂。这种茂金属是有机金属化学与有机合成中的常用试剂。其性质为亮红色固体，在空气中会缓慢的水解^[1]。Cp₂TiCl₂并不会形成二茂铁那样的“三明治”结构，由于其4个配體围绕一个金属中心，会形成一个四面體结构^[2]。由于其具有一定的抗肿瘤活性，已经作为化疗药物进入临床试验。

参考文献

^ S. Budaver, ed. The Merck Index (11th ed.). Merck & Co, Inc. 1989.
^ Clearfield; Warner, David Keith; Saldarriaga-Molina, Carlos Herman; Ropal, Ramanathan; Bernal, Ivan; et al. Structural Studies of (π-C₅H₅)₂ MX₂ Complexes and their Derivatives. The Structure of Bis(π-cyclopentadienyl)titanium Dichloride. Canadian Journal of Chemistry. 1975, 53 (11): 1621–1629. doi:10.1139/v75-228.

延伸阅读

Payack, J. F.; Hughes, D. L.; Cai, D.; Cottrell, I. F.; Verhoeven, T. R. "Dimethyltitanocene Titanium, bis(η5-2,4-cyclopentadien-1-yl)dimethyl-" Organic Syntheses, Coll. Vol. 10, p. 355 (2004); Vol. 79, p. 19 (2002).
S. Gambarotta, C. Floriani, A. Chiesi-Villa and C. Guastini. Cyclopentadienyldichlorotitanium(III): a free-radical-like reagent for reducing azo (N:N) multiple bonds in azo and diazo compounds. J. Am. Chem. Soc. 1983, 105 (25): 7295–7301. doi:10.1021/ja00363a015.
P. J. Chirik. Group 4 Transition Metal Sandwich Complexes: Still Fresh after Almost 60 Years. Organometallics. 2010, 29 (7): 1500–1517. doi:10.1021/om100016p.

钛化合物

钛(II)

有机钛(II)化合物	(C₅H₅)₂Ti(CO)₂

钛(III)

钛(IV)

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