| 查看: 2355 | 回复: 21 | ||
| 【奖励】 本帖被评价11次，作者sunmlw增加金币 6.75 个 | ||
| 当前主题已经存档。 | ||
[资源]
PH对晶体生长的影响
|
||
| 厦门大学的研究人员控制不同的PH得到不同结构的晶体，挺有意思！ |
回复此楼» 猜你喜欢
广州大学大湾区环境研究院环境大分子材料研究所王平山教授团队 2026年研究生招生简章
已经有0人回复
-
天津理工大学
已经有0人回复
-
无机化学论文润色/翻译怎么收费?
已经有54人回复
-
台州学院有序多孔材料团队最后冲刺，同学们别错过哦，请速联系！
已经有0人回复
-
江西科技师范大学物理化学课题组接收调剂生，名额还有，速来
已经有0人回复
-
求碳酸钠和碳酸氢钠的晶胞结构图或晶体结构图
已经有0人回复
-
求碳酸钠和碳酸氢钠的晶胞结构图或晶体结构图
已经有0人回复
-
江西科技师范大学物理化学课题组接收调剂生，12点开启，速来
已经有0人回复
2楼2007-08-24 09:39:39
3楼2007-08-24 10:56:51
4楼2007-08-24 20:35:24
5楼2007-08-24 20:38:44
6楼2007-08-25 04:23:01
7楼2007-08-26 10:53:36
8楼2007-08-27 09:52:26
9楼2007-08-27 12:04:31
10楼2007-09-03 16:25:59
11楼2007-09-05 11:44:51
12楼2007-09-05 15:45:18
|
ABSTRACT: Five Cu(II)/benzoate/4,4¢-bipy complexes, namely, [Cu(H2O)(benzoate)2(4,4¢-bipy)2](benzoic acid)2â(4,4¢-bipy) (1), [Cu2(H2O)2(benzoate)4(4,4¢-bipy)3]â(H2O)9 (2), [Cu2(benzoate)4(4,4¢-bipy)3] (3), [Cu3(H2O)4(benzoate)6(4,4¢-bipy)4.5]â(4,4¢-bipy)â (H2O)5 (4), and [Cu3(OH)2(H2O)2(benzoate)4(4,4¢-bipy)2] (5) (4,4¢-bipy ) 4,4¢-bipyridine), have been synthesized through hydrothermal reaction of copper(II) nitrate, benzoic acid, and 4,4¢-bipyridine under different pH conditions. The diverse product structures show the marked sensitivity of the structural chemistry of the aromatic carboxylate ligand to synthesis conditions. Complex 1, which exhibits a zero-dimensional (0D) structure of mononuclear copper(II), is formed at pH ) 5.5. At pH ) 6.0, dimeric copper(II) complexes of 2 and 3 are formed. Reaction at pH ) 7 leads to a one-dimensional (1D) structure of 4. A further increase of the pH to 8.0 results in a two-dimensional (2D) structure of 5. Crystal data are monoclinic, space group P2/n, a ) 13.992(4) Å, b ) 5.7153(14) Å, c ) 31.126(8) Å, â ) 100.513(5)°, Z ) 2 for 1, monoclinic, space group C2/c, a ) 30.283(5) Å, b ) 15.139(2) Å, c ) 14.457(2) Å, â ) 112.776(3)°, Z ) 4 for 2, monoclinic, space group P21/c, a ) 5.8317(12) Å, b ) 21.157(4) Å, c ) 20.679(4) Å, â ) 94.343(3)°, Z ) 2 for 3, triclinic, space group P1h, a ) 14.016(3) Å, b ) 18.492(4) Å, c ) 19.353(4) Å, R ) 66.220(3)°, â ) 79.948(4)°, ç ) 88.390(3)°, Z ) 2 for 4, and monoclinic, space group P21/c, a ) 5.6880(16) Å, b ) 17.917(5) Å, c ) 20.904(6) Å, â ) 92.959(5)°, Z ) 2 for 5. |
13楼2007-09-29 15:09:26
14楼2007-09-29 15:16:52
15楼2007-12-06 08:07:57
