CAS 17611-70-0 Zinc Borohydride - Analytical Products / Alfa Chemistry

CAT	APB17611700
CAS	17611-70-0
Structure
Molecular Weight	95.06
Molecular Formula	B2H8Zn

What is the product name of CAS 17611-70-0?

The product name is Zinc Borohydride.

What is the molecular weight of Zinc Borohydride?

The molecular weight of Zinc Borohydride is 95.06.

What is the molecular formula of Zinc Borohydride?

The molecular formula of Zinc Borohydride is B2H8Zn.

What is the CAS number for Zinc Borohydride?

The CAS number for Zinc Borohydride is 17611-70-0.

What elements are present in the molecular formula of Zinc Borohydride?

The elements present in the molecular formula of Zinc Borohydride are boron, hydrogen, and zinc.

What is the significance of Zinc Borohydride in chemical reactions?

Zinc Borohydride is commonly used as a reducing agent in various chemical reactions.

How is Zinc Borohydride typically prepared?

Zinc Borohydride is typically prepared by the reaction of sodium borohydride with zinc sulfate.

What are some common applications of Zinc Borohydride?

Some common applications of Zinc Borohydride include organic synthesis, metal reduction, and fuel cell technology.

How does Zinc Borohydride compare to other borohydride compounds in terms of reactivity?

Zinc Borohydride is generally less reactive compared to other borohydride compounds, making it suitable for specific reaction conditions.

Are there any safety considerations to keep in mind when working with Zinc Borohydride?

Yes, precautions should be taken when handling Zinc Borohydride as it is a potentially hazardous compound and its reactions should be conducted in a controlled environment.

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Case Study

Zinc Borohydride for the Preparation of Stabilized Hydrogen Storage Complexes via Ethylenediamine Coordination

Roedern, E., & Jensen, T. R. (2016). ChemistrySelect, 1(4), 752-755.

Zinc borohydride [Zn(BH₄)₂] is a highly reactive compound with significant potential as a hydrogen storage material. However, its practical application has been historically hindered by its thermal instability, decomposing below room temperature. In a solvent-based synthesis approach, this challenge is addressed by stabilizing Zn(BH₄)₂ through complexation with ethylenediamine (en), forming crystalline adducts Zn(en)ₙ(BH₄)₂ (n = 3 or 4) in diethyl ether.
The crystal structures of these coordination complexes were elucidated using synchrotron radiation powder X-ray diffraction (SR-PXD), revealing stable frameworks capable of withstanding moderate heating. In situ SR-PXD and thermogravimetric analysis demonstrated that these complexes release en upon heating and subsequently liberate hydrogen in significant quantities-up to 8 wt% at 135 °C for Zn(BH₄)₂-en (1:2) and 5 wt% at 110 °C for Zn(BH₄)₂-en (1:1).
Unlike alkali-metal zinc borohydrides that release diborane alongside hydrogen, these Zn-en composites favor hydrogen release, representing a safer and more practical option for solid-state hydrogen storage systems. This study illustrates that complexation with nitrogen-based ligands not only enhances the thermal stability of Zn(BH₄)₂ but also tunes its decomposition pathway for selective hydrogen evolution.
This product is used for the preparation of high-performance hydrogen storage materials through ethylenediamine complexation.

Zinc Borohydride Used for the Chemoselective Reduction of Carbonyl Compounds to Alcohols in the Presence of Charcoal

Setamdideh, Davood, and Mehdi Rahmatollahzadeh. Journal of the Mexican Chemical Society 56.2 (2012): 169-175.

Zinc borohydride [Zn(BH₄)₂] serves as an efficient and selective reducing agent for the conversion of diverse organic carbonyl compounds into their corresponding alcohols. In a THF-based system, the presence of activated charcoal significantly enhances its reducing ability, enabling rapid and high-yield transformations at room temperature.
This reduction system effectively targets aldehydes, ketones, α-diketones, acyloins, and α,β-unsaturated carbonyl compounds. Notably, it achieves excellent chemoselectivity-preferentially reducing aldehydes over ketones-and delivers exclusive 1,2-reduction of conjugated carbonyls to produce allylic alcohols, bypassing undesired 1,4-addition pathways.
A representative reaction involves the reduction of benzaldehyde to benzyl alcohol using 0.5 mmol Zn(BH₄)₂ and 1.0 mmol charcoal in 2 mL THF, stirred for just 5 minutes at room temperature. After simple aqueous workup and chromatography, benzyl alcohol is obtained in a remarkable 94% yield.
Compared to traditional hydride donors, Zn(BH₄)₂ offers advantages in mildness, selectivity, and functional group tolerance. Its compatibility with charcoal further boosts reactivity and operational simplicity, making it highly valuable for synthetic organic chemistry applications, particularly when controlled reduction of multifunctional substrates is required.