Metal-Centered Zintl Ions Isolated by Direct Extraction from Endohedral Intermetallic Precursor: [Co1-x@Sn9]4- (x ≈ 0.32) and [Co2@Sn17]5-

Haiyan He; Wilhelm Klein; Laura Alice Jantke; Thomas F. Fässler

doi:10.1002/zaac.201400379

Metal-Centered Zintl Ions Isolated by Direct Extraction from Endohedral Intermetallic Precursor: [Co_1-x@Sn₉]^4- (x ≈ 0.32) and [Co₂@Sn₁₇]^5-

Haiyan He, Wilhelm Klein, Laura Alice Jantke, Thomas F. Fässler

Chair of Inorganic Chemistry with Focus on New Materials

Technical University of Munich

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

24 Scopus citations

Abstract

Two new compounds with Co-centered Sn₉ clusters were obtained by the extraction directly from the intermetallic precursor K_4.79Co_0.79Sn₉ in ethylenediamine with addition of cryptand [2.2.2]. The anions [Co_0.68@Sn₉]^4- in K[K([2.2.2]crypt)]₃[Co_0.68@Sn₉] (1) consisting of overlaying [Co@Sn₉]^4- and [Sn₉]^4- cluster anions are connected by K atoms to form infinite rm1-K[Co_0.68@Sn₉] chains. The anions [Co₂@Sn₁₇]^5- in [K([2.2.2]crypt)]₅[Co₂@Sn₁₇]·en·tol (2) are built from two [Co@Sn₉] sharing one common Sn atom, with the same composition but a different conformation as in the previously reported [K([2.2.2]crypt)]₅[Co₂@Sn₁₇]. Quantum chemical calculations for the different conformers of [Co₂@Sn₁₇]^5- reveal that both conformers are rather close in energy and that the short intercluster Sn-Sn distance in 2 does not originate from attractive interactions.

Original language	English
Pages (from-to)	2864-2870
Number of pages	7
Journal	Zeitschrift fur Anorganische und Allgemeine Chemie
Volume	640
Issue number	14
DOIs	https://doi.org/10.1002/zaac.201400379
State	Published - 1 Nov 2014

Keywords

Cobalt
Endohedral Zintl ions
Stannide
Synthetic methods

Access to Document

10.1002/zaac.201400379

Cite this

@article{58f8952e95304c1fae5599daad8b9c5a,

title = "Metal-Centered Zintl Ions Isolated by Direct Extraction from Endohedral Intermetallic Precursor: [Co1-x@Sn9]4- (x ≈ 0.32) and [Co2@Sn17]5-",

abstract = "Two new compounds with Co-centered Sn9 clusters were obtained by the extraction directly from the intermetallic precursor K4.79Co0.79Sn9 in ethylenediamine with addition of cryptand [2.2.2]. The anions [Co0.68@Sn9]4- in K[K([2.2.2]crypt)]3[Co0.68@Sn9] (1) consisting of overlaying [Co@Sn9]4- and [Sn9]4- cluster anions are connected by K atoms to form infinite rm1-K[Co0.68@Sn9] chains. The anions [Co2@Sn17]5- in [K([2.2.2]crypt)]5[Co2@Sn17]·en·tol (2) are built from two [Co@Sn9] sharing one common Sn atom, with the same composition but a different conformation as in the previously reported [K([2.2.2]crypt)]5[Co2@Sn17]. Quantum chemical calculations for the different conformers of [Co2@Sn17]5- reveal that both conformers are rather close in energy and that the short intercluster Sn-Sn distance in 2 does not originate from attractive interactions.",

keywords = "Cobalt, Endohedral Zintl ions, Stannide, Synthetic methods",

author = "Haiyan He and Wilhelm Klein and Jantke, {Laura Alice} and F{\"a}ssler, {Thomas F.}",

note = "Publisher Copyright: {\textcopyright} 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

year = "2014",

month = nov,

day = "1",

doi = "10.1002/zaac.201400379",

language = "English",

volume = "640",

pages = "2864--2870",

journal = "Zeitschrift fur Anorganische und Allgemeine Chemie",

issn = "0044-2313",

publisher = "Wiley-VCH Verlag",

number = "14",

}

TY - JOUR

T1 - Metal-Centered Zintl Ions Isolated by Direct Extraction from Endohedral Intermetallic Precursor

T2 - [Co1-x@Sn9]4- (x ≈ 0.32) and [Co2@Sn17]5-

AU - He, Haiyan

AU - Klein, Wilhelm

AU - Jantke, Laura Alice

AU - Fässler, Thomas F.

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Two new compounds with Co-centered Sn9 clusters were obtained by the extraction directly from the intermetallic precursor K4.79Co0.79Sn9 in ethylenediamine with addition of cryptand [2.2.2]. The anions [Co0.68@Sn9]4- in K[K([2.2.2]crypt)]3[Co0.68@Sn9] (1) consisting of overlaying [Co@Sn9]4- and [Sn9]4- cluster anions are connected by K atoms to form infinite rm1-K[Co0.68@Sn9] chains. The anions [Co2@Sn17]5- in [K([2.2.2]crypt)]5[Co2@Sn17]·en·tol (2) are built from two [Co@Sn9] sharing one common Sn atom, with the same composition but a different conformation as in the previously reported [K([2.2.2]crypt)]5[Co2@Sn17]. Quantum chemical calculations for the different conformers of [Co2@Sn17]5- reveal that both conformers are rather close in energy and that the short intercluster Sn-Sn distance in 2 does not originate from attractive interactions.

AB - Two new compounds with Co-centered Sn9 clusters were obtained by the extraction directly from the intermetallic precursor K4.79Co0.79Sn9 in ethylenediamine with addition of cryptand [2.2.2]. The anions [Co0.68@Sn9]4- in K[K([2.2.2]crypt)]3[Co0.68@Sn9] (1) consisting of overlaying [Co@Sn9]4- and [Sn9]4- cluster anions are connected by K atoms to form infinite rm1-K[Co0.68@Sn9] chains. The anions [Co2@Sn17]5- in [K([2.2.2]crypt)]5[Co2@Sn17]·en·tol (2) are built from two [Co@Sn9] sharing one common Sn atom, with the same composition but a different conformation as in the previously reported [K([2.2.2]crypt)]5[Co2@Sn17]. Quantum chemical calculations for the different conformers of [Co2@Sn17]5- reveal that both conformers are rather close in energy and that the short intercluster Sn-Sn distance in 2 does not originate from attractive interactions.

KW - Cobalt

KW - Endohedral Zintl ions

KW - Stannide

KW - Synthetic methods

UR - http://www.scopus.com/inward/record.url?scp=84942137181&partnerID=8YFLogxK

U2 - 10.1002/zaac.201400379

DO - 10.1002/zaac.201400379

M3 - Article

AN - SCOPUS:84942137181

SN - 0044-2313

VL - 640

SP - 2864

EP - 2870

JO - Zeitschrift fur Anorganische und Allgemeine Chemie

JF - Zeitschrift fur Anorganische und Allgemeine Chemie

IS - 14

ER -

Metal-Centered Zintl Ions Isolated by Direct Extraction from Endohedral Intermetallic Precursor: [Co_1-x@Sn₉]^4- (x ≈ 0.32) and [Co₂@Sn₁₇]^5-

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this