5,11,17,23-tetrakis(1,1-dimethylethyl)-25,26,27,28-tetrakis<2-(methylthio)ethoxy>calix<4>arene

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 5,11,17,23-tetrakis(1,1-dimethylethyl)-25,26,27,28-tetrakis<2-(methylthio)ethoxy>calix<4>arene
• 英文别名: 5,11,17,23-Tetratert-butyl-25,26,27,28-tetrakis(2-methylsulfanylethoxy)pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaene
• 化学式: C₅₆H₈₀O₄S₄
• 分子量: 945.513
• InChiKey: BGCWRGJAMHSDKR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  16.9
• 重原子数：
  64
• 可旋转键数：
  20
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  138
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxycalix-4-arene 在 sodium hydride 、 potassium carbonate 作用下， 以 乙腈 为溶剂， 反应 41.0h， 生成 5,11,17,23-tetrakis(1,1-dimethylethyl)-25,26,27,28-tetrakis<2-(methylthio)ethoxy>calix<4>arene
  参考文献：
  名称：

  Transduction of selective recognition of heavy metal ions by chemically modified field effect transistors (CHEMFETs)

  摘要：

  Specifically substituted calix[4]arenes that complex selectively silver (2), copper (13), cadmium (23), and lead (29) cations were synthesized via di- and tetraalkylation of p-tert-butylcalix[4]arene. Calix[4]arenes derivatized with thioether, thioamide, and dithiocarbamoyl functionalities could be obtained in high overall yields. Integrated on a chemically modified field effect transistor (CHEMFET) the selective complexation of heavy metal ions by these calix[4]arenes is transduced directly into an electrical signal. An architecture for CHEMFETs is used in which a hydrophilic polyHEMA hydrogel is covalently attached between the gate oxide surface of a modified ISFET and the hydrophobic sensing membrane that contains the receptor molecule. CHEMFETs based on the calix[4]arene (2) with two diametrically substituted thioether functionalities responded selectively (60 mV decade-1) to a change in silver activity in the aqueous solution in the presence of potassium, calcium, cadmium, and copper ions (log K(ij) less-than-or-equal-to -4). The selectivity toward mercury (log K(ij) = -2.7) is comparable to the best neutral carrier based ISE so far. The calix[4]arene (13), with four dithiocarbamoyl groups, incorporated in a CHEMFET responsed Nernstian (30 mV decade-1) to a change in copper activity. The calix[4]arene (23), which has four dimethylthiocarbamoylmethoxyethoxy substituents, was selective in a CHEMFET (30 mV decade-1) toward cadmium in the presence of calcium and potassium ions. Two classes of ionophores can be distinguished for the selective detection of lead(II) cations by CHEMFETs, oxamide and thioamide ionophores, respectively. Tetrasubstitution of the calix[4]arene with thioamide groups (29) is a prerequisite for the selective detection of lead and leads to a highly selective CHEMFET (log K(ij) -3.4 to -5.2).

  DOI：

  10.1021/ja00052a063

文献信息

• Transduction of selective recognition of heavy metal ions by chemically modified field effect transistors (CHEMFETs)
  作者：Peter L. H. M. Cobben、Richard J. M. Egberink、Johan G. Bomer、Piet Bergveld、Willem Verboom、David N. Reinhoudt

  DOI：10.1021/ja00052a063

  日期：1992.12

  Specifically substituted calix[4]arenes that complex selectively silver (2), copper (13), cadmium (23), and lead (29) cations were synthesized via di- and tetraalkylation of p-tert-butylcalix[4]arene. Calix[4]arenes derivatized with thioether, thioamide, and dithiocarbamoyl functionalities could be obtained in high overall yields. Integrated on a chemically modified field effect transistor (CHEMFET) the selective complexation of heavy metal ions by these calix[4]arenes is transduced directly into an electrical signal. An architecture for CHEMFETs is used in which a hydrophilic polyHEMA hydrogel is covalently attached between the gate oxide surface of a modified ISFET and the hydrophobic sensing membrane that contains the receptor molecule. CHEMFETs based on the calix[4]arene (2) with two diametrically substituted thioether functionalities responded selectively (60 mV decade-1) to a change in silver activity in the aqueous solution in the presence of potassium, calcium, cadmium, and copper ions (log K(ij) less-than-or-equal-to -4). The selectivity toward mercury (log K(ij) = -2.7) is comparable to the best neutral carrier based ISE so far. The calix[4]arene (13), with four dithiocarbamoyl groups, incorporated in a CHEMFET responsed Nernstian (30 mV decade-1) to a change in copper activity. The calix[4]arene (23), which has four dimethylthiocarbamoylmethoxyethoxy substituents, was selective in a CHEMFET (30 mV decade-1) toward cadmium in the presence of calcium and potassium ions. Two classes of ionophores can be distinguished for the selective detection of lead(II) cations by CHEMFETs, oxamide and thioamide ionophores, respectively. Tetrasubstitution of the calix[4]arene with thioamide groups (29) is a prerequisite for the selective detection of lead and leads to a highly selective CHEMFET (log K(ij) -3.4 to -5.2).