Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH                         3

Vidura D. Thalangamaarachchige; Nadeesha J. Silva; Daniel K. Unruh; Adelia J.A. Aquino; Clemens Krempner

doi:10.1016/j.tet.2019.02.011

Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH ₃

Vidura D. Thalangamaarachchige, Nadeesha J. Silva, Daniel K. Unruh, Adelia J.A. Aquino, Clemens Krempner

Chemistry and Biochemistry

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Abstract

The synthesis, structures and spectroscopic properties of M(MeOCH ₂ CH ₂ OMe ₂ Si) ₃ C–BH ₃ (M-1-BH ₃ ) and M(MeOCH ₂ CH ₂ OMe ₂ Si) ₃ Si–BH ₃ (M-2-BH ₃ ) (M = Li, Na, K) derived from reactions of BH ₃ with the alkali metal zwitterions [M(MeOCH ₂ CH ₂ OMe ₂ Si) ₃ C] (M-1) and [M(MeOCH ₂ CH ₂ OMe ₂ Si) ₃ Si] (M-2) (M = Li, Na, K), resp., are reported. X-ray analysis and DFT calculations reveal discrete zwitterionic structures with the octahedral alkali metal cations rigidly locked and charge separated from the BH ₃ units via pendant donors groups. Solution experiments with the hydride acceptors B(C ₆ F ₅ ) ₃ and [Ph ₃ C] ₂ [B ₁₂ C ₁₂ ] indicate that Na-1-BH ₃ can donate hydrides to form cations of formula [Na(MeOCH ₂ CH ₂ OMe ₂ Si) ₃ C–BH ₂ ] ⁺ .

Original language	English
Pages (from-to)	1861-1864
Number of pages	4
Journal	Tetrahedron
Volume	75
Issue number	13
DOIs	https://doi.org/10.1016/j.tet.2019.02.011
State	Published - Mar 29 2019

Keywords

Borane
DFT calculation
Lewis acid-base chemistry
Methanides
Silanides
Zwitterions

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10.1016/j.tet.2019.02.011

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Thalangamaarachchige, V. D., Silva, N. J., Unruh, D. K., Aquino, A. J. A., & Krempner, C. (2019). Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH ₃ Tetrahedron, 75(13), 1861-1864. https://doi.org/10.1016/j.tet.2019.02.011

@article{f2a6972604ee463c81fd3ecb5b1780a7,

title = " Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH 3 ",

abstract = " The synthesis, structures and spectroscopic properties of M(MeOCH 2 CH 2 OMe 2 Si) 3 C–BH 3 (M-1-BH 3 ) and M(MeOCH 2 CH 2 OMe 2 Si) 3 Si–BH 3 (M-2-BH 3 ) (M = Li, Na, K) derived from reactions of BH 3 with the alkali metal zwitterions [M(MeOCH 2 CH 2 OMe 2 Si) 3 C] (M-1) and [M(MeOCH 2 CH 2 OMe 2 Si) 3 Si] (M-2) (M = Li, Na, K), resp., are reported. X-ray analysis and DFT calculations reveal discrete zwitterionic structures with the octahedral alkali metal cations rigidly locked and charge separated from the BH 3 units via pendant donors groups. Solution experiments with the hydride acceptors B(C 6 F 5 ) 3 and [Ph 3 C] 2 [B 12 C 12 ] indicate that Na-1-BH 3 can donate hydrides to form cations of formula [Na(MeOCH 2 CH 2 OMe 2 Si) 3 C–BH 2 ] + .",

keywords = "Borane, DFT calculation, Lewis acid-base chemistry, Methanides, Silanides, Zwitterions",

author = "Thalangamaarachchige, {Vidura D.} and Silva, {Nadeesha J.} and Unruh, {Daniel K.} and Aquino, {Adelia J.A.} and Clemens Krempner",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = mar,

day = "29",

doi = "10.1016/j.tet.2019.02.011",

language = "English",

volume = "75",

pages = "1861--1864",

journal = "Tetrahedron",

issn = "0040-4020",

number = "13",

}

Thalangamaarachchige, VD, Silva, NJ, Unruh, DK, Aquino, AJA & Krempner, C 2019, ' Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH ₃ ', Tetrahedron, vol. 75, no. 13, pp. 1861-1864. https://doi.org/10.1016/j.tet.2019.02.011

Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH ₃ . / Thalangamaarachchige, Vidura D.; Silva, Nadeesha J.; Unruh, Daniel K. et al.
In: Tetrahedron, Vol. 75, No. 13, 29.03.2019, p. 1861-1864.

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

TY - JOUR

T1 - Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH 3

AU - Thalangamaarachchige, Vidura D.

AU - Silva, Nadeesha J.

AU - Unruh, Daniel K.

AU - Aquino, Adelia J.A.

AU - Krempner, Clemens

PY - 2019/3/29

Y1 - 2019/3/29

N2 - The synthesis, structures and spectroscopic properties of M(MeOCH 2 CH 2 OMe 2 Si) 3 C–BH 3 (M-1-BH 3 ) and M(MeOCH 2 CH 2 OMe 2 Si) 3 Si–BH 3 (M-2-BH 3 ) (M = Li, Na, K) derived from reactions of BH 3 with the alkali metal zwitterions [M(MeOCH 2 CH 2 OMe 2 Si) 3 C] (M-1) and [M(MeOCH 2 CH 2 OMe 2 Si) 3 Si] (M-2) (M = Li, Na, K), resp., are reported. X-ray analysis and DFT calculations reveal discrete zwitterionic structures with the octahedral alkali metal cations rigidly locked and charge separated from the BH 3 units via pendant donors groups. Solution experiments with the hydride acceptors B(C 6 F 5 ) 3 and [Ph 3 C] 2 [B 12 C 12 ] indicate that Na-1-BH 3 can donate hydrides to form cations of formula [Na(MeOCH 2 CH 2 OMe 2 Si) 3 C–BH 2 ] + .

AB - The synthesis, structures and spectroscopic properties of M(MeOCH 2 CH 2 OMe 2 Si) 3 C–BH 3 (M-1-BH 3 ) and M(MeOCH 2 CH 2 OMe 2 Si) 3 Si–BH 3 (M-2-BH 3 ) (M = Li, Na, K) derived from reactions of BH 3 with the alkali metal zwitterions [M(MeOCH 2 CH 2 OMe 2 Si) 3 C] (M-1) and [M(MeOCH 2 CH 2 OMe 2 Si) 3 Si] (M-2) (M = Li, Na, K), resp., are reported. X-ray analysis and DFT calculations reveal discrete zwitterionic structures with the octahedral alkali metal cations rigidly locked and charge separated from the BH 3 units via pendant donors groups. Solution experiments with the hydride acceptors B(C 6 F 5 ) 3 and [Ph 3 C] 2 [B 12 C 12 ] indicate that Na-1-BH 3 can donate hydrides to form cations of formula [Na(MeOCH 2 CH 2 OMe 2 Si) 3 C–BH 2 ] + .

KW - Borane

KW - DFT calculation

KW - Lewis acid-base chemistry

KW - Methanides

KW - Silanides

KW - Zwitterions

UR - http://www.scopus.com/inward/record.url?scp=85061792774&partnerID=8YFLogxK

U2 - 10.1016/j.tet.2019.02.011

DO - 10.1016/j.tet.2019.02.011

M3 - Article

AN - SCOPUS:85061792774

SN - 0040-4020

VL - 75

SP - 1861

EP - 1864

JO - Tetrahedron

JF - Tetrahedron

IS - 13

ER -

Lewis acid-base adducts of zwitterionic alkali metal methanides and silanides with BH ₃

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Keywords

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