Heavy alkali metal amides

Role of secondary interactions in metal stabilization

Ana Torvisco, Katharina Decker, Frank Uhlig, Karin Ruhlandt

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The coordination chemistry of the bis(diphenylmethylsilyl)amine ligand, HN(SiMePh2)2, with the heavy alkali metals potassium and rubidium has been investigated to study its effect on the structure of the resulting compounds. The compounds exhibit extensive intra- and intermolecular M-π interactions, creating 1-D coordination polymers, [K{N(SiMePh 2)2}]∞ (1) and [Rb{N(SiMePh2) 2}]∞ (3). This motif is maintained in the presence of tetrahydrofuran (THF), as seen in [K{N(SiMePh2)2}thf] ∞ (2). In contrast, use of the tridentate PMDTA allows isolation of a monomeric species, K(pmdta)N(SiMePh2)2 (4), which exhibits both agostic and M-π interactions. The incorporation of macrocyclic 18-crown-6, results in the formation of a rare non-metal bound amido species, {[K(18-crown-6)N(SiMePh2)2]}∞ (5), stabilized by M-π interactions from adjacent [N(SiMePh2)2] - ligands propagating 1-D coordination polymers.

Original languageEnglish (US)
Pages (from-to)11459-11465
Number of pages7
JournalInorganic Chemistry
Volume48
Issue number23
DOIs
StatePublished - 2009

Fingerprint

Alkali Metals
heavy metals
Amides
alkali metals
amides
Heavy metals
Polymers
Stabilization
stabilization
Metals
Rubidium
Ligands
coordination polymers
metals
Amines
Potassium
ligands
interactions
rubidium
tetrahydrofuran

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Heavy alkali metal amides : Role of secondary interactions in metal stabilization. / Torvisco, Ana; Decker, Katharina; Uhlig, Frank; Ruhlandt, Karin.

In: Inorganic Chemistry, Vol. 48, No. 23, 2009, p. 11459-11465.

Research output: Contribution to journalArticle

Torvisco, Ana ; Decker, Katharina ; Uhlig, Frank ; Ruhlandt, Karin. / Heavy alkali metal amides : Role of secondary interactions in metal stabilization. In: Inorganic Chemistry. 2009 ; Vol. 48, No. 23. pp. 11459-11465.
@article{c858687fd54445a69637e8c6ed4fce66,
title = "Heavy alkali metal amides: Role of secondary interactions in metal stabilization",
abstract = "The coordination chemistry of the bis(diphenylmethylsilyl)amine ligand, HN(SiMePh2)2, with the heavy alkali metals potassium and rubidium has been investigated to study its effect on the structure of the resulting compounds. The compounds exhibit extensive intra- and intermolecular M-π interactions, creating 1-D coordination polymers, [K{N(SiMePh 2)2}]∞ (1) and [Rb{N(SiMePh2) 2}]∞ (3). This motif is maintained in the presence of tetrahydrofuran (THF), as seen in [K{N(SiMePh2)2}thf] ∞ (2). In contrast, use of the tridentate PMDTA allows isolation of a monomeric species, K(pmdta)N(SiMePh2)2 (4), which exhibits both agostic and M-π interactions. The incorporation of macrocyclic 18-crown-6, results in the formation of a rare non-metal bound amido species, {[K(18-crown-6)N(SiMePh2)2]}∞ (5), stabilized by M-π interactions from adjacent [N(SiMePh2)2] - ligands propagating 1-D coordination polymers.",
author = "Ana Torvisco and Katharina Decker and Frank Uhlig and Karin Ruhlandt",
year = "2009",
doi = "10.1021/ic901767c",
language = "English (US)",
volume = "48",
pages = "11459--11465",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "American Chemical Society",
number = "23",

}

TY - JOUR

T1 - Heavy alkali metal amides

T2 - Role of secondary interactions in metal stabilization

AU - Torvisco, Ana

AU - Decker, Katharina

AU - Uhlig, Frank

AU - Ruhlandt, Karin

PY - 2009

Y1 - 2009

N2 - The coordination chemistry of the bis(diphenylmethylsilyl)amine ligand, HN(SiMePh2)2, with the heavy alkali metals potassium and rubidium has been investigated to study its effect on the structure of the resulting compounds. The compounds exhibit extensive intra- and intermolecular M-π interactions, creating 1-D coordination polymers, [K{N(SiMePh 2)2}]∞ (1) and [Rb{N(SiMePh2) 2}]∞ (3). This motif is maintained in the presence of tetrahydrofuran (THF), as seen in [K{N(SiMePh2)2}thf] ∞ (2). In contrast, use of the tridentate PMDTA allows isolation of a monomeric species, K(pmdta)N(SiMePh2)2 (4), which exhibits both agostic and M-π interactions. The incorporation of macrocyclic 18-crown-6, results in the formation of a rare non-metal bound amido species, {[K(18-crown-6)N(SiMePh2)2]}∞ (5), stabilized by M-π interactions from adjacent [N(SiMePh2)2] - ligands propagating 1-D coordination polymers.

AB - The coordination chemistry of the bis(diphenylmethylsilyl)amine ligand, HN(SiMePh2)2, with the heavy alkali metals potassium and rubidium has been investigated to study its effect on the structure of the resulting compounds. The compounds exhibit extensive intra- and intermolecular M-π interactions, creating 1-D coordination polymers, [K{N(SiMePh 2)2}]∞ (1) and [Rb{N(SiMePh2) 2}]∞ (3). This motif is maintained in the presence of tetrahydrofuran (THF), as seen in [K{N(SiMePh2)2}thf] ∞ (2). In contrast, use of the tridentate PMDTA allows isolation of a monomeric species, K(pmdta)N(SiMePh2)2 (4), which exhibits both agostic and M-π interactions. The incorporation of macrocyclic 18-crown-6, results in the formation of a rare non-metal bound amido species, {[K(18-crown-6)N(SiMePh2)2]}∞ (5), stabilized by M-π interactions from adjacent [N(SiMePh2)2] - ligands propagating 1-D coordination polymers.

UR - http://www.scopus.com/inward/record.url?scp=72949096607&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=72949096607&partnerID=8YFLogxK

U2 - 10.1021/ic901767c

DO - 10.1021/ic901767c

M3 - Article

VL - 48

SP - 11459

EP - 11465

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 23

ER -