| Full- or Half-Encapsulation of Sulfate Anion by a Tris(3-pyridylurea) Receptor: Effect of the Secondary Coordination Sphere | |
| Department | 羰基合成与选择氧化国家重点实验室 ; 精细石油化工中间体国家工程研究中心 |
诸葛福瑜; Wu B(吴彪); Liang JJ(梁建军); Yang J(杨进); Liu YY(刘艳艳); Jia CD(贾传东); Christoph Janiak; Tang N(唐宁); Yang XJ(杨晓娟)
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| 2009 | |
| Source Publication | Inorganic Chemistry
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| ISSN | 0020-1669 |
| Volume | 48Issue:21Pages:10249-10256 |
| Abstract | Self-assembly of the [Fe(DABP)3]SO4 (DABP = 5,50-diamino-2,20-bipyridine) or [Fe(bipy)3]SO4 (bipy = 2,20-bipyridine) complexwith a tripodal tris(3-pyridylurea) ligand (L) results in a layered structure that includes a sulfate anion in the cleft of one L molecule. The two compounds, [Fe(DABP)3][SO4⊂L] 3 10H2O (2) and [Fe(bipy)3][SO4⊂L] 3 9H2O (3), show very similar sheets formed by the anionic units [SO4⊂L]2- and cationic building blocks ([Fe(DABP)3]2þ or [Fe(bipy)3]2þ). However, there are different water clusters that link the adjacent layers in the two products, that is, water parallelograms and quasi “water cubes” in 2 versus single water molecules, water dimers, and hexamers in 3. The half-encapsulation of sulfate by a single L molecule contrastswith the previously reported full-encapsulation of the sulfate ion by two Lmolecules in [M(H2O)6][SO4⊂L2] (1). This different anion encapsulation is traced to the hydrogen-acceptor properties of the pyridyl groups of L together with the hydrogen-bonding properties of the cation secondary coordination sphere for a solid-state packing optimization. In 1 the direct hydrogen bonding fromthe secondary coordination sphere of octahedral [M(H2O)6]2þ to L-pyridyl helps in the formation of an octahedral cation-anion coordination in the NaCl-type structure. In 2 and 3, crystal water instead of the cations has to satisfy the hydrogen-accepting demands of L. Consequently, a non-spherical and only partly water-surrounded half-encapsulated [SO4⊂L]2- anion allows for a closer approach of the [Fe(DABP)3]2þ or [Fe(bipy)3]2þ cations than the [SO4⊂L2]2- anion. Then, the similar cation and anion size in 2 and 3 with the Coulomb attraction confined to a two-dimensional plane leads to the formation of a hexagonal BN (or graphite) lattice. Competition experiments with different anions for compound 2 reveal that SO42- can be selectively crystallized against NO3-, OAc-, or ClO4-. |
| Subject Area | 金属有机与超分子催化 |
| Funding Organization | the National Natural Science Foundation of China (Grant 20872149);the “Bairen Jihua” project of the Chinese Academy of Sciences |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 金属有机与超分子催化研究组 ; 金属有机功能材料研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/534 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Wu B(吴彪); Christoph Janiak; Yang XJ(杨晓娟) |
| Recommended Citation GB/T 7714 | 诸葛福瑜,Wu B,Liang JJ,et al. Full- or Half-Encapsulation of Sulfate Anion by a Tris(3-pyridylurea) Receptor: Effect of the Secondary Coordination Sphere[J]. Inorganic Chemistry,2009,48(21):10249-10256. |
| APA | 诸葛福瑜.,吴彪.,梁建军.,杨进.,刘艳艳.,...&杨晓娟.(2009).Full- or Half-Encapsulation of Sulfate Anion by a Tris(3-pyridylurea) Receptor: Effect of the Secondary Coordination Sphere.Inorganic Chemistry,48(21),10249-10256. |
| MLA | 诸葛福瑜,et al."Full- or Half-Encapsulation of Sulfate Anion by a Tris(3-pyridylurea) Receptor: Effect of the Secondary Coordination Sphere".Inorganic Chemistry 48.21(2009):10249-10256. |
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