ic5b00525_si_001.pdf (1.49 MB)
Diamondoid-Type Copper Coordination Polymers Containing Soft Cyclodiphosphazane Ligands
journal contribution
posted on 2015-07-06, 00:00 authored by Mujahuddin M. Siddiqui, Joel T Mague, Maravanji S. BalakrishnaThree
novel coordination polymers have been synthesized by reacting cis- and trans-alkyne-appended cyclodiphosphazanes
with CuX (X = Br, I) salts. The reaction of cis-[(PhCCP)2(μ-NtBu)2] (1) with CuBr in a 1:3 molar ratio gave a 3D coordination polymer,
[{Cu4(μ3-Br)4}{(cis-(PhCCP)2(μ-NtBu)2)Cu4(μ2-Br)4(cis-(PhCCP)2(μ-NtBu)2)}4]n (3), having
diamondoid topology with an unprecedented copper alkyne coordination,
whereas the reaction of 1 with CuI in a 1:4 molar ratio
afforded a 1D polymeric complex, [{Cu4(μ3-I)4}(NCCH3)2{cis-(PhCCP)2(μ-NtBu)2}2]n (4). In contrast, the reaction of trans-[(PhCCP)2(μ-NtBu)2] (2) with CuI was found to be independent
of stoichiometry and afforded a 3D coordination polymer, [{Cu4(μ3-I)4}{trans-(PhCCP)2(μ-NtBu)2}2]n (5), exclusively.
