TY - JOUR
T1 - Alkaline earth metal di- and triphenylmethanides
T2 - Analysis of ion association modes
AU - Guino-O, Marites A.
AU - Torvisco, Ana
AU - Teng, Weijie
AU - Ruhlandt-Senge, Karin
N1 - Funding Information:
We gratefully acknowledge support from the National Science Foundation (CHE-0753807). Purchase of the X-ray diffraction equipment was made possible with grants from the National Science Foundation (CHE-9527858, and CHE-0234912), Syracuse University and the W. M. Keck Foundation.
PY - 2012/7/1
Y1 - 2012/7/1
N2 - A family of alkaline earth metal di- and triphenylmethanides was prepared and examined to illustrate ion association trends and associated reactivity in dependence of metal, coligand and ligand delocalization. To this effect, we are reporting the contact molecules Ba(18-crown-6)(CHPh2)2 and Ba(dme)2(CHPh2)2 (DME, 1,2-dimethoxyethane), the dissociated ions [Ba(hmpa)6][R]2, R = CHPh 2, CPh3 (HMPA, hexamethylphosphoramide), in addition to two compounds with one metal bound anion, and an unassociated one, [Ca(18-crown-6)(N(SiMe3)2)][R], R = CHPh2, CPh3. We are also reporting a highly unusual lithium enolate, [Li2(OCHCH2)(pmdta)2][CHPh2] (PMDTA, N,N,N′,N″,N″-pentamethyldiethylenetriamine), obtained en route to the target compounds via THF scission chemistry.
AB - A family of alkaline earth metal di- and triphenylmethanides was prepared and examined to illustrate ion association trends and associated reactivity in dependence of metal, coligand and ligand delocalization. To this effect, we are reporting the contact molecules Ba(18-crown-6)(CHPh2)2 and Ba(dme)2(CHPh2)2 (DME, 1,2-dimethoxyethane), the dissociated ions [Ba(hmpa)6][R]2, R = CHPh 2, CPh3 (HMPA, hexamethylphosphoramide), in addition to two compounds with one metal bound anion, and an unassociated one, [Ca(18-crown-6)(N(SiMe3)2)][R], R = CHPh2, CPh3. We are also reporting a highly unusual lithium enolate, [Li2(OCHCH2)(pmdta)2][CHPh2] (PMDTA, N,N,N′,N″,N″-pentamethyldiethylenetriamine), obtained en route to the target compounds via THF scission chemistry.
KW - Alkaline earth metals
KW - Contact molecules
KW - Diphenylmethanides
KW - Dissociated ions
KW - Triphenylmethanides
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U2 - 10.1016/j.ica.2012.03.007
DO - 10.1016/j.ica.2012.03.007
M3 - Article
AN - SCOPUS:84861626667
SN - 0020-1693
VL - 389
SP - 122
EP - 130
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
ER -