Two [Cu2I2]-based coordination polymers of 1,3-bis(pyridin-4-yl)propane.
Two [Cu2I2]-based coordination polymers of 1,3-bis(pyridin-4-yl)propane.
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DOI：
10.1107/s0108270112025577
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发表时间：
2012-07
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通讯作者：
Li-Min Wan;Zhou Yang;Ai-Xia Zheng;Zhi‐Gang Ren;J. Lang
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作者：
Li-Min Wan;Zhou Yang;Ai-Xia Zheng;Zhi‐Gang Ren;J. Lang
在氨水存在下，铜(2)(OH)(2)CO(3)与1，3-二(吡啶-4-基)丙烷在4-碘甲苯/CH(3)CN或1，4-二碘苯/CH(3)CN中的溶剂热反应生成了两种[Cu(2)I(2)]基配位聚合物，即catena-poly[[[di-μ-iodido-dicopper(I)]-bis[μ-1，3-bis(pyridin-4-yl)propane-κ(2)N:N‘]]对甲苯胺四醇酸酯。{[Cu(2)I(2)(C(13)H(14)N(2))(2)]·4C(7)H(9)N}(n)，(I)和类似的1，4-二碘苯单醇酸酯{[Cu(2)I(2)(C(13)H(14)N(2))(2)]·C(6)H(4)I(2)}(n)，(II)。(I)的[Cu(2)I(2)]单元位于两个I原子中点的对称性中心上，而(II)的[Cu(2)I(2)]单元具有穿过I···I线的两个轴。在(I)和(II)中，每个铜中心由来自两个不同bpp配体的两个μ-I和两个N原子四面体配位。每个菱形[Cu(2)I(2)]单元可以看作一个四连节点，通过两对BPP配体连接到对称性相关的[Cu(2)I(2)]单元，形成沿c轴的一维双链。(I)和(II)中的[Cu(2)I(2)(Bpp)(2)](2)环的尺寸不同，这可能是由于结构中存在不同的客体溶剂分子所致。在(I)中，4-碘甲苯与氨经Ullmann偶联反应生成的一个对甲苯胺分子通过N-H···I氢键与[Cu(2)I(2)]簇碎片相互作用，而两个对甲苯胺分子通过N-H···N氢键相互作用。在(II)中，每个1，4-二碘苯分子的两个I原子通过I···I二次相互作用与相邻链上的[Cu(2)I(2)]片段的I原子相连。
Solvothermal reactions of Cu(2)(OH)(2)CO(3) with 1,3-bis(pyridin-4-yl)propane (bpp) in the presence of aqueous ammonia in 4-iodotoluene/CH(3)CN or 1,4-diiodobenzene/CH(3)CN afforded two [Cu(2)I(2)]-based coordination polymers, namely catena-poly[[[di-μ-iodido-dicopper(I)]-bis[μ-1,3-bis(pyridin-4-yl)propane-κ(2)N:N']] p-toluidine tetrasolvate], {[Cu(2)I(2)(C(13)H(14)N(2))(2)]·4C(7)H(9)N}(n), (I), and the analogous 1,4-diiodobenzene monosolvate, {[Cu(2)I(2)(C(13)H(14)N(2))(2)]·C(6)H(4)I(2)}(n), (II). The [Cu(2)I(2)] unit of (I) lies on a centre of symmetry at the mid-point of the two I atoms, while that of (II) has a twofold axis running through the I···I line. In (I) and (II), each Cu centre is tetrahedrally coordinated by two μ-I and two N atoms from two different bpp ligands. Each rhomboid [Cu(2)I(2)] unit can be considered as a four-connecting node linked to the symmetry-related [Cu(2)I(2)] units via two pairs of bpp ligands to form a one-dimensional double chain along the c axis. The dimensions of the [Cu(2)I(2)(bpp)(2)](2) rings in (I) and (II) are different, which may be due to the presence of different guest solvent molecules in the structures. In (I), one p-toluidine molecule, derived from an Ullmann coupling reaction of 4-iodotoluene with ammonia, interacts with the [Cu(2)I(2)] cluster fragment through N-H···I hydrogen bonds, while the two p-toluidine molecules interact via N-H···N hydrogen bonds. In (II), two I atoms of each 1,4-diiodobenzene molecule are linked to the I atoms of the [Cu(2)I(2)] fragments from a neighbouring chain via I···I secondary interactions.