Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (8): 20220136.doi: 10.7503/cjcu20220136
• Organic Chemistry • Previous Articles Next Articles
WENG Meiqi1, SHANG Guiming1, WANG Jiatai1, LI Shenghua1, FAN Zhi1, LIN Song2, GUO Minjie1()
Received:
2022-03-03
Online:
2022-08-10
Published:
2022-04-15
Contact:
GUO Minjie
E-mail:guomj@tust.edu.cn
Supported by:
CLC Number:
TrendMD:
WENG Meiqi, SHANG Guiming, WANG Jiatai, LI Shenghua, FAN Zhi, LIN Song, GUO Minjie. Template Simulation of Organophosphorus Nerve Agent Molecularly Imprinted Polymers[J]. Chem. J. Chinese Universities, 2022, 43(8): 20220136.
MIPs | n(BNPP)/n(MAAP)/n(MAA) | n(BNPP)/n(EGDMA) | n(BNPP)/n(AIBN) |
---|---|---|---|
MIP1 | 1∶1∶2 | 1∶12 | 1∶0.37 |
MIP2 | 1∶1∶3 | 1∶16 | 1∶0.49 |
MIP3 | 1∶1∶4 | 1∶20 | 1∶0.61 |
MIP4 | 1∶1∶5 | 1∶24 | 1∶0.73 |
MIP5 | 1∶1∶4 | 1∶15 | 1∶0.61 |
MIP6 | 1∶1∶4 | 1∶25 | 1∶0.61 |
MIP7 | 1∶1∶4 | 1∶30 | 1∶0.61 |
MIP8 | 1∶4∶0 | 1∶16 | 1∶0.49 |
MIP9 | 1∶0∶4 | 1∶16 | 1∶0.49 |
Table 1 Synthetic conditions of different MIPs
MIPs | n(BNPP)/n(MAAP)/n(MAA) | n(BNPP)/n(EGDMA) | n(BNPP)/n(AIBN) |
---|---|---|---|
MIP1 | 1∶1∶2 | 1∶12 | 1∶0.37 |
MIP2 | 1∶1∶3 | 1∶16 | 1∶0.49 |
MIP3 | 1∶1∶4 | 1∶20 | 1∶0.61 |
MIP4 | 1∶1∶5 | 1∶24 | 1∶0.73 |
MIP5 | 1∶1∶4 | 1∶15 | 1∶0.61 |
MIP6 | 1∶1∶4 | 1∶25 | 1∶0.61 |
MIP7 | 1∶1∶4 | 1∶30 | 1∶0.61 |
MIP8 | 1∶4∶0 | 1∶16 | 1∶0.49 |
MIP9 | 1∶0∶4 | 1∶16 | 1∶0.49 |
Complex | ΔEa / (kJ?mol-1) | ΔGb / (kJ?mol-1) | Bond length/nm | H?bond number | Complex | ΔEa / (kJ?mol-1) | ΔGb / (kJ?mol-1) | Bond length/nm | H?bond number |
---|---|---|---|---|---|---|---|---|---|
BNPP?MAAP | -79.941 | -25.911 | 0.191/0.147 | 2 | PO?MAAP | -20.208 | 22.881 | 0.193 | 1 |
BNPP?AM | -76.591 | -29.022 | 0.186/0.133 | 2 | PO?AM | -10.780 | 20.277 | 0.196 | 1 |
BNPP?4?VP | -85.940 | -40.976 | 0.157 | 1 | PO?4?VP | -3.544 | 31.511 | — | 0 |
BNPP?MAA | -72.543 | -26.357 | 0.163/0.150 | 2 | PO?MAA | -33.160 | 3.909 | 0.169 | 1 |
BNPP?IA | -71.175 | -18.397 | 0.163/0.151 | 2 | PO?IA | -31.425 | 9.254 | 0.170 | 1 |
BNPP?4?VINA | -72.188 | -21.671 | 0.163/0.150 | 2 | PO?4?VINA | -30.298 | 9.221 | 0.168 | 1 |
BNPP?MMA | -37.487 | 13.983 | 0.160 | 1 | PO?MMA | -3.589 | 26.772 | — | 0 |
BNPP?APTES | -5.899 | 44.983 | — | 0 | PO?APTES | -7.525 | 21.456 | — | 0 |
BNPP?SM | -2.200 | 41.110 | — | 0 | PO?SM | -2.912 | 28.361 | — | 0 |
Table 2 Relevant parameters of binding energy(ΔE) between templates and functional monomers in the most stable complex*
Complex | ΔEa / (kJ?mol-1) | ΔGb / (kJ?mol-1) | Bond length/nm | H?bond number | Complex | ΔEa / (kJ?mol-1) | ΔGb / (kJ?mol-1) | Bond length/nm | H?bond number |
---|---|---|---|---|---|---|---|---|---|
BNPP?MAAP | -79.941 | -25.911 | 0.191/0.147 | 2 | PO?MAAP | -20.208 | 22.881 | 0.193 | 1 |
BNPP?AM | -76.591 | -29.022 | 0.186/0.133 | 2 | PO?AM | -10.780 | 20.277 | 0.196 | 1 |
BNPP?4?VP | -85.940 | -40.976 | 0.157 | 1 | PO?4?VP | -3.544 | 31.511 | — | 0 |
BNPP?MAA | -72.543 | -26.357 | 0.163/0.150 | 2 | PO?MAA | -33.160 | 3.909 | 0.169 | 1 |
BNPP?IA | -71.175 | -18.397 | 0.163/0.151 | 2 | PO?IA | -31.425 | 9.254 | 0.170 | 1 |
BNPP?4?VINA | -72.188 | -21.671 | 0.163/0.150 | 2 | PO?4?VINA | -30.298 | 9.221 | 0.168 | 1 |
BNPP?MMA | -37.487 | 13.983 | 0.160 | 1 | PO?MMA | -3.589 | 26.772 | — | 0 |
BNPP?APTES | -5.899 | 44.983 | — | 0 | PO?APTES | -7.525 | 21.456 | — | 0 |
BNPP?SM | -2.200 | 41.110 | — | 0 | PO?SM | -2.912 | 28.361 | — | 0 |
Complex | H?bond number | Bond length/nm | ΔE/ (kJ?mol-1) | ΔG/ (kJ?mol-1) | Complex | H?bond number | Bond length /nm | ΔE/ (kJ?mol-1) | ΔG/ (kJ?mol-1) |
---|---|---|---|---|---|---|---|---|---|
BNPP?MAAP?AM?a | 3 | 0.189 0.147 0.194 | -92.948 | 7.428 | PO?MAAP?AM?a | 2 | 0.188 0.197 | -35.035 | 48.451 |
BNPP?MAAP?AM?b | 3 | 0.178 0.146 0.178 | -101.696 | -0.4 | PO?MAAP?AM?b | 2 | 0.194 0.194 | -36.093 | 51.124 |
PO?MAAP?AM?c | 2 | 0.193 0.191 | -28.862 | 62.757 | |||||
PO?MAAP?AM?d | 2 | 0.195 0.198 | -33.155 | 56.850 | |||||
BNPP?MAAP?MAA?a | 2 | 0.164 0.145 | -98.498 | -6.280 | PO?MAAP?AM?e | 2 | 0.198 0.189 | -35.520 | 48.931 |
PO?MAAP?MAA?a | 2 | 0.165 0.189 | -55.422 | 31.178 | |||||
BNPP?MAAP?MAA?b | 2 | 0.169 0.145 | -86.754 | 9.840 | PO?MAAP?MAA?b | 2 | 0.167 0.202 | -41.352 | 48.404 |
PO?MAAP?MAA?c | 2 | 0.190 0.160 | -56.750 | 31.582 | |||||
BNPP?MAAP?MAA?c | 3 | 0.187 0.146 0.170 | -111.492 | -9.407 | PO?MAAP?MAA?d | 2 | 0.197 0.163 | -54.177 | 29.495 |
BNPP?MAAP?4?VP?a | 2 | 0.195 0.148 | -87.403 | 6.474 | PO?MAAP?4?VP?a | 1 | 0.194 | -23.362 | 57.449 |
BNPP?MAAP?4?VP?b | 2 | 0.191 0.158 | -107.824 | 13.075 | PO?MAAP?4?VP?b | 1 | 0.192 | -29.792 | 50.234 |
Table 3 Relevant parameters of hydrogen bond and binding energy(ΔE) between templates and bifunctional monomer*
Complex | H?bond number | Bond length/nm | ΔE/ (kJ?mol-1) | ΔG/ (kJ?mol-1) | Complex | H?bond number | Bond length /nm | ΔE/ (kJ?mol-1) | ΔG/ (kJ?mol-1) |
---|---|---|---|---|---|---|---|---|---|
BNPP?MAAP?AM?a | 3 | 0.189 0.147 0.194 | -92.948 | 7.428 | PO?MAAP?AM?a | 2 | 0.188 0.197 | -35.035 | 48.451 |
BNPP?MAAP?AM?b | 3 | 0.178 0.146 0.178 | -101.696 | -0.4 | PO?MAAP?AM?b | 2 | 0.194 0.194 | -36.093 | 51.124 |
PO?MAAP?AM?c | 2 | 0.193 0.191 | -28.862 | 62.757 | |||||
PO?MAAP?AM?d | 2 | 0.195 0.198 | -33.155 | 56.850 | |||||
BNPP?MAAP?MAA?a | 2 | 0.164 0.145 | -98.498 | -6.280 | PO?MAAP?AM?e | 2 | 0.198 0.189 | -35.520 | 48.931 |
PO?MAAP?MAA?a | 2 | 0.165 0.189 | -55.422 | 31.178 | |||||
BNPP?MAAP?MAA?b | 2 | 0.169 0.145 | -86.754 | 9.840 | PO?MAAP?MAA?b | 2 | 0.167 0.202 | -41.352 | 48.404 |
PO?MAAP?MAA?c | 2 | 0.190 0.160 | -56.750 | 31.582 | |||||
BNPP?MAAP?MAA?c | 3 | 0.187 0.146 0.170 | -111.492 | -9.407 | PO?MAAP?MAA?d | 2 | 0.197 0.163 | -54.177 | 29.495 |
BNPP?MAAP?4?VP?a | 2 | 0.195 0.148 | -87.403 | 6.474 | PO?MAAP?4?VP?a | 1 | 0.194 | -23.362 | 57.449 |
BNPP?MAAP?4?VP?b | 2 | 0.191 0.158 | -107.824 | 13.075 | PO?MAAP?4?VP?b | 1 | 0.192 | -29.792 | 50.234 |
Sample | Surface area/(m2?g-1) | Pore volume/(cm3?g-1) | Pore diameter/nm |
---|---|---|---|
MIP3 | 25.995 | 0.073 | 3.826 |
NIP3 | 6.419 | 0.028 | 3.428 |
Table 4 Specific surface area, pore size and volume of the samples
Sample | Surface area/(m2?g-1) | Pore volume/(cm3?g-1) | Pore diameter/nm |
---|---|---|---|
MIP3 | 25.995 | 0.073 | 3.826 |
NIP3 | 6.419 | 0.028 | 3.428 |
Coating | High?affinity site | Low?affinity site | ||
---|---|---|---|---|
Kd/(mg?mL-1) | Qmax/(mg?g-1) | Kd/(mg?mL-1) | Qmax/(mg?g-1) | |
MIP3 | 0.036 | 12.798 | 0.218 | 26.074 |
NIP3 | — | — | 0.146 | 13.201 |
Table 5 Affinity constant(Ka) and maximum number of binding sites(Qmax) for MIP3 and NIP3
Coating | High?affinity site | Low?affinity site | ||
---|---|---|---|---|
Kd/(mg?mL-1) | Qmax/(mg?g-1) | Kd/(mg?mL-1) | Qmax/(mg?g-1) | |
MIP3 | 0.036 | 12.798 | 0.218 | 26.074 |
NIP3 | — | — | 0.146 | 13.201 |
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