Synthesis and Structure of Lithium and Rubidium Compounds
with 2-(Diphenylacetyl)-1,3-indanedione

K. K. Palkina^a and A. N. Kochetov^b

^a Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 119991 Russia

^b Lomonosov State Academy of Fine Chemical Technology, pr. Vernadskogo 86, Moscow, 117571 Russia

e-mail: palkinak@igic.ras.ru

Received May 15, 2007

Abstract— Complexes RbL (I) and [Li₂(C₂H₅O)L₂] (II) (L = C₂₃H₁₅O₃) have been synthesized and their
crystal structures have been studied. Both compounds have monoclinic crystals with space group P2₁/c and
Z=4; I: a = 11.632(2) Å, b = 15.154(3) Å, c = 11.457(2) Å, =104.34(3); II: a = 12.982(3)Å, b = 12.083(2) Å,
c = 25.317(5) Å = 100.11(3). In the structure of I, dimeric groups [Rb₂O₆] with a shared edge are linked by
the ligands to give infinite layers perpendicular to the x axis and cavities that form oblong channels. In the struc-
ture of II, Li₂O₇ dimers are formed by vertex sharing. The coordination of one of the lithium atoms (Li(1)) is
completed to tetrahedral by the oxygen atom of the ethanol molecule. The structure of II, like that of I, is lay-
ered.

DOI: 10.1134/S0036023608070127

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