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469858

Sigma-Aldrich

Tetrakis(dimethylamido)titanium(IV)

99.999% trace metals basis

Synonym(s):

TDMAT, Tetrakis(dimethylamino)titanium(IV)

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About This Item

Linear Formula:
[(CH3)2N]4Ti
CAS Number:
3275-24-9
Molecular Weight:
224.17
EC Number:
221-904-3
MDL number:
MFCD00014861
UNSPSC Code:
12352103
PubChem Substance ID:
24870618
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

200

Assay

99.999% trace metals basis

form

liquid

reaction suitability

core: titanium

bp

50 °C/0.5 mmHg (lit.)

density

0.947 g/mL at 25 °C (lit.)

SMILES string

CN(C)[Ti](N(C)C)(N(C)C)N(C)C

InChI

1S/4C2H6N.Ti/c4*1-3-2;/h4*1-2H3;/q4*-1;+4

InChI key

MNWRORMXBIWXCI-UHFFFAOYSA-N

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General description

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Application

Tetrakis(dimethylamido)titanium(IV) (TDMAT) is a precursor to titanium nitride (TiN) thin films by organometallic chemical vapor deposition (OMCVD)[1]and titanium dioxide thin films by atomic layer deposition (ALD).[2][3][4]TDMAT undergoes exothermal reaction with excess cyclopentadiene to yield tris(dimethylamido)(η5-cyclopentadienyl)titanium(IV).[5]

accessory

Product No.
Description
Pricing

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H225,H260,H314

Hazard Classifications

Flam. Liq. 2 - Skin Corr. 1B - Water-react 1

Supplementary Hazards

EUH014

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 3

Flash Point(F)

-22.0 °F - closed cup

Flash Point(C)

-30 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS2053
SHBP1947
SHBL6315
SHBL2751
SHBH9716

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Science of Synthesis: Organometallic Complexes of Titanium
Mikami K, et al. et al.
Science of Synthesis: Houben-Weyl Methods of Molecular Transformations, 494-494 (2014)
Chemistry of Materials, 8, 2712-2712 (1996)
Improving performance via blocking layers in dye-sensitized solar cells based on nanowire photoanodes.
Li L, et al.
ACS Applied Materials & Interfaces, 7(23), 12824-12831 (2015)
Microstructure and elastic properties of atomic layer deposited TiO 2 anatase thin films.
Borgese L, et al.
Acta Materialia, 59(7), 2891-2900 (2011)
Tianshuo Zhao et al.
Proceedings of the National Academy of Sciences of the United States of America, 118(7) (2021-02-10)
Semiconductors of narrow bandgaps and high quantum efficiency have not been broadly utilized for photocatalytic coevolution of H2 and O2 via water splitting. One prominent issue is to develop effective protection strategies, which not only mitigate photocorrosion in an aqueous
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A Review of Mesoporous TiO2 Thin Films

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A Review of Mesoporous TiO2 Thin Films

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. What sealing procedure was used for the ampule containing 469858-5G? There were issues when attempting to reseal the ampule using parafilm. Therefore, a resealing procedure is needed to ensure that the contents can be used over time without crystallizing.

    1 answer

    1. The ampules are intended for one-time use only. For any remaining material, it is advised to transfer it to a bottle with a screw cap in a glove bag under inert atmosphere instead of trying to re-seal the glass ampule. It's important to note that this material is highly sensitive to air and water, so it cannot be guaranteed that the material will not degrade once the ampule has been opened and the contents transferred to a new bottle.

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