Hypervalent octahedral SiH 6 2- species from high-pressure synthesis

Kati Puhakainen; Daryn Benson; Johanna Nylén; Sumit Konar; Emil Stoyanov; Kurt Leinenweber; Ulrich Häussermann

doi:10.1002/anie.201108713

Hypervalent octahedral SiH ₆ ^2- species from high-pressure synthesis

Kati Puhakainen, Daryn Benson, Johanna Nylén, Sumit Konar, Emil Stoyanov, Kurt Leinenweber, Ulrich Häussermann

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

High-pressure conditions afford unique all-hydrido hypervalent complexes [SiH ₆] ^2- in the crystalline hydridosilicates A ₂SiH ₆ (A=K, Rb). Compared to normal-valent silanes the Si-H bond appears considerably enlarged, by about 0.15 Å. Accordingly, Si-H stretching frequencies are drastically reduced, by about 400-500 cm ^-1, thus reflecting the weakness of a hypervalent Si-H bond.

Original language	English (US)
Pages (from-to)	3156-3160
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	51
Issue number	13
DOIs	https://doi.org/10.1002/anie.201108713
State	Published - Mar 26 2012

Keywords

coordination chemistry
high-pressure hydrogenation
hydrido complexes
hypervalent silicon
multi-anvil technique

ASJC Scopus subject areas

Catalysis
Chemistry(all)

Access to Document

10.1002/anie.201108713

Fingerprint Dive into the research topics of 'Hypervalent octahedral SiH <sub>6</sub> <sup>2-</sup> species from high-pressure synthesis'. Together they form a unique fingerprint.

Cite this

@article{b5ee18b85d364b208d186eae898d0c0f,

title = "Hypervalent octahedral SiH 6 2- species from high-pressure synthesis",

abstract = "High-pressure conditions afford unique all-hydrido hypervalent complexes [SiH 6] 2- in the crystalline hydridosilicates A 2SiH 6 (A=K, Rb). Compared to normal-valent silanes the Si-H bond appears considerably enlarged, by about 0.15 {\AA}. Accordingly, Si-H stretching frequencies are drastically reduced, by about 400-500 cm -1, thus reflecting the weakness of a hypervalent Si-H bond.",

keywords = "coordination chemistry, high-pressure hydrogenation, hydrido complexes, hypervalent silicon, multi-anvil technique",

author = "Kati Puhakainen and Daryn Benson and Johanna Nyl{\'e}n and Sumit Konar and Emil Stoyanov and Kurt Leinenweber and Ulrich H{\"a}ussermann",

year = "2012",

month = mar,

day = "26",

doi = "10.1002/anie.201108713",

language = "English (US)",

volume = "51",

pages = "3156--3160",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "13",

}

TY - JOUR

T1 - Hypervalent octahedral SiH 6 2- species from high-pressure synthesis

AU - Puhakainen, Kati

AU - Benson, Daryn

AU - Nylén, Johanna

AU - Konar, Sumit

AU - Stoyanov, Emil

AU - Leinenweber, Kurt

AU - Häussermann, Ulrich

PY - 2012/3/26

Y1 - 2012/3/26

N2 - High-pressure conditions afford unique all-hydrido hypervalent complexes [SiH 6] 2- in the crystalline hydridosilicates A 2SiH 6 (A=K, Rb). Compared to normal-valent silanes the Si-H bond appears considerably enlarged, by about 0.15 Å. Accordingly, Si-H stretching frequencies are drastically reduced, by about 400-500 cm -1, thus reflecting the weakness of a hypervalent Si-H bond.

AB - High-pressure conditions afford unique all-hydrido hypervalent complexes [SiH 6] 2- in the crystalline hydridosilicates A 2SiH 6 (A=K, Rb). Compared to normal-valent silanes the Si-H bond appears considerably enlarged, by about 0.15 Å. Accordingly, Si-H stretching frequencies are drastically reduced, by about 400-500 cm -1, thus reflecting the weakness of a hypervalent Si-H bond.

KW - coordination chemistry

KW - high-pressure hydrogenation

KW - hydrido complexes

KW - hypervalent silicon

KW - multi-anvil technique

UR - http://www.scopus.com/inward/record.url?scp=84858776839&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858776839&partnerID=8YFLogxK

U2 - 10.1002/anie.201108713

DO - 10.1002/anie.201108713

M3 - Article

C2 - 22323241

AN - SCOPUS:84858776839

VL - 51

SP - 3156

EP - 3160

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 13

ER -