CN115010764B - 一种铂-氮杂卡宾配合物及其合成方法和应用 - Google Patents
一种铂-氮杂卡宾配合物及其合成方法和应用 Download PDFInfo
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- 239000000047 product Substances 0.000 claims description 18
- -1 diphenyl iodonium hexafluorophosphate Chemical compound 0.000 claims description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 14
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
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- 238000002360 preparation method Methods 0.000 claims description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 8
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- 238000001035 drying Methods 0.000 claims description 4
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- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- XBSVVLLAMHTBPS-UHFFFAOYSA-N 2-(1h-pyrazol-5-yl)pyrazine Chemical compound N1N=CC=C1C1=CN=CC=N1 XBSVVLLAMHTBPS-UHFFFAOYSA-N 0.000 claims description 2
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- 229910052697 platinum Inorganic materials 0.000 abstract description 4
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- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 abstract 2
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- 229910001923 silver oxide Inorganic materials 0.000 abstract 1
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
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- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 2
- VGPRNGGSKJHOFE-UHFFFAOYSA-N 2-methylpyrimidin-5-amine Chemical compound CC1=NC=C(N)C=N1 VGPRNGGSKJHOFE-UHFFFAOYSA-N 0.000 description 1
- FTIPLKFFZLCAFN-UHFFFAOYSA-N 2-tert-butylpyrimidin-5-amine Chemical compound CC(C)(C)C1=NC=C(N)C=N1 FTIPLKFFZLCAFN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
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Abstract
本发明的目的在于提供一种铂‑氮杂卡宾配合物及其合成方法,以及在有机发光二极管方面的应用,属于有机发光材料技术领域,苯甲腈a与胺b反应生成化合物c,之后与氯乙醛反应生成咪唑衍生物d,之后与烃基碘反应生成化合物e,之后与氧化银反应,与[PtMe2(SMe2)]2反应,与对甲基苯磺酸反应,再与化合物f和醋酸钠反应,生成铂配合物,本发明通过配体结构设计将其发光波长调节到红光区域。
Description
技术领域
本发明属于有机发光材料技术领域,具体涉及一种铂-氮杂卡宾配合物及其合成方法和应用。
背景技术
有机发光二极管(organic light-emitting diodes,OLEDs)能够将电能转化成光能,在高端显示、照明等领域有着非常广泛的应用。有机发光二极管的发光性能非常依赖于发光材料的种类。由于其高的量子效率和平面方向的偶极,有机铂配合物常被用作高效的磷光发光材料。目前,已有多个课题组开展了铂配合物发光材料的研究(Liao, J. L. et al. Inorg. Chem. 2016, 55, 6394-6404. Zhao, J. et al. Chem. Commun., 2017,53, 7581-7584.)。
发明内容
本发明的目的在于提供一种铂-氮杂卡宾配合物及其合成方法,以及在有机发光二极管方面的应用。本发明合成了一系列铂-氮杂卡宾配合物,并通过配体结构设计将其发光波长调节到红光区域。
本发明采用如下技术方案:
一种铂-氮杂卡宾配合物,包括配合物g和g3,其中,g包括顺反异构体g1和g2;g1、g2和g3的结构通式如下所示:
(g1);
(g2);
(g3)。
进一步地,所述R1包括2-10碳烃基、3-6碳环烷基、三氟甲基和取代苯基中的任意一种;R2包括2-10碳烃基;R3包括取代苯基;X包括碳原子或氮原子。
进一步地,R1的取代苯基中的取代基包括氢、羟基、卤素原子、氰基、硝基、酯基、氟、三氟甲基、三氟甲氧基、1-5碳烃基、1-6碳烷氧基中的任意一种或同时含有2-3个上述取代基。
进一步地,R3的取代苯基中的取代基包括氢、羟基、卤素原子、氰基、硝基、酯基、三氟甲基、三氟甲氧基、1-5碳烃基、1-6碳烷氧基中的任意一种或同时含有2-3个上述取代基。
进一步地,所述g1、g2和g3的结构式如下g1-1、g2-1、g3-1所示:
(g1-1);
(g2-1);
(g3-1)。
一种铂-氮杂卡宾配合物的制备方法,包括配合物g和g3的制备方法,其中,配合物g的制备方法,包括如下步骤:
第一步,苯甲腈与胺反应:0℃条件下,将NaH加入到胺的二甲基亚砜溶液中,再加入苯甲腈,在0℃条件下反应1h,然后温度升至25℃,搅拌12h,搅拌结束后,将水加入反应液中,并将温度降至0℃,析出白色沉淀,抽滤,得到产物;
第二步,与氯乙醛反应生成咪唑衍生物:将第一步得到的产物和氯乙醛溶于氯仿中,在62℃条件下,回流4h,TLC监测反应完毕,将反应液冷却至25℃,用二氯甲烷萃取三次并将有机相结合,经洗涤干燥减压浓缩柱层析得到产物;
第三步,与烃基碘反应:在封管中加入第二步的产物、烃基碘和四氢呋喃,拧紧管口,在90℃下反应24h,将反应液冷却,减压过滤洗涤,得到产物;
第四步,串联反应:在三口瓶中加入第三步的产物和Ag2O,氮气保护下加入N,N-二甲基甲酰胺,75℃条件下避光反应23h,将反应液降温至25℃,加入[PtMe2(SMe2)]2的四氢呋喃溶液,25℃下反应24h,用滤膜过滤AgI,将过滤后的反应液注入到氮气保护的三口瓶,加热至55℃,反应2h,反应结束后,降至室温,逐滴加入对甲苯磺酸的四氢呋喃溶液,25℃下反应30min,反应结束后,冷却至-40℃,加入2-(2H-吡唑-3-基)-吡啶或2-(2H-吡唑-3-基)-吡嗪的四氢呋喃溶液,加入醋酸钠,-40℃反应2h后,升温至25℃,反应24h后,将反应液抽干柱层析得到g1和g2;
配合物g3的制备方法,包括如下步骤:
第一步和第二步与配合物g的制备步骤相同;
第三步,在封管中加入第二步的产物、二苯基碘鎓六氟磷酸盐和醋酸铜溶于DMF,将管口用塞子拧紧,在100℃下反应18h,将反应液冷却,减压过滤,用四氢呋喃洗涤,干燥得到产物;
第四步和配合物g的制备步骤相同,加入的第三步产物不同,反应结束后,得到g3。
一种铂-氮杂卡宾配合物应用于有机发光二极管。
本发明的有益效果如下:
本发明通式代表的配合物(g1-g3)的部分化合物的发光波长达到红光区域,并表现出良好的量子效率。本发明通式所代表的配合物(g1-g3)能够作为有机发光二极管的受体材料。
附图说明
图1为配合物g的反应过程;
图2为实施例1的配合物g的反应过程;
图3为配合物g3的反应过程;
图4为实施例2的配合物g3-1的反应过程;
图5为配合物的吸收和发射光谱图。
具体实施方式
下述的实施例可用来进一步说明本发明,但不意味着限制本发明。
实施例1
配合物g1和g2的制备
(1)N-(2-叔丁基-嘧啶-5-基)-苯甲脒(c1)的制备
0℃下,将NaH(0.18g,5mmol,60%)加入到2-叔丁基-5-氨基嘧啶b1(0.5 g,3.3mmol)的二甲基亚砜(10 mL)溶液中。向溶液中加入苯甲腈a(0.3 g,3 mmol),并在0℃下反应1h。将反应液温度升至25℃,并在该温度下搅拌12小时。将水加入到反应液中,并将反应液降温到0℃使白色沉淀析出,抽滤,得到白色固体c1(0.67g,88%)。1H NMR (400 MHz,DMSO) δ 8.27 (s, 2H), 7.98 (d, 2H, J = 7.2 Hz), 7.50-7.42 (m, 3H), 6.86 (s,2H), 1.36 (s, 9H). 13C NMR (101 MHz, DMSO) δ 156.1 (1C), 149.5 (2C), 141.9(1C), 141.3 (1C), 135.3 (1C), 130.4 (1C), 128.0 (2C), 127.1 (2C), 38.4 (1C),29.8 (3C). ESI-HRMS(m/z):Calcd. for C15H18N4 [M+H]+ 255.1610; found 255.1600。
(2)2-叔丁基-5-(2-苯基-咪唑-1-基)-嘧啶(d1)的制备
将化合物c1(0.2 g,0.8 mmol),氯乙醛(0.3 g,1.6 mmol,40%水溶液)溶于氯仿(5mL)中,在62℃条件下回流4h,TLC监测反应完毕。将反应液冷却到25 ℃,用二氯甲烷萃取三次并将有机相合并,无水硫酸钠干燥,减压浓缩,柱层析(洗脱剂:石油醚:乙酸乙酯= 1:5(v/v))得淡黄色油状液体d1(0.16g,72%)。1H NMR (400 MHz, DMSO) δ 8.84 (s, 2H),8.27 (d, 1H, J = 2.0 Hz), 8.18 (d, 1H, J = 2.0 Hz), 1.35 (s, 9H). 13C NMR (101MHz, DMSO) δ175.3 (1C), 153.5 (2C), 146.3 (1C), 130.7 (1C), 129.7 (1C), 129.2(1C), 128.7 (3C), 128.5 (2C), 123.6 (1C), 39.2 (1C), 29.4 (3C). ESI-HRMS(m/z):Calcd. for C17H18N4 [M+H]+ 279.1610; found 279.1600。
(3)3-(2-叔丁基-嘧啶-5-基)-1-甲基-2-苯基-3H-咪唑-1-基碘(e1)的制备
在封管中加入2-叔丁基-5-(2-苯基-咪唑-1-基)-嘧啶d1(0.16g,0.57mmol),碘甲烷(0.16g,1.14mmol)和四氢呋喃(2 mL),将管口用塞子拧紧,在90℃下反应24h。将反应液冷却,减压过滤,用少量四氢呋喃洗涤,干燥得到白色固体e1(0.13g,54%)。1H NMR (400MHz, DMSO) δ 1H NMR (400 MHz, DMSO) δ 8.85(s,2H), 8.28(d, J = 2.0, 1H),8.19(d, J = 2.0, 1H), 7.68-7.58 (m, 5H), 3.83 (3H), 1.32 (9H).13C NMR (101 MHz,DMSO) δ177.2(1C), 154.1(2C), 144.9(1C), 132.5(1C), 131.2(2C), 129.3(2C),128.3(1C), 124.2(1C), 123.6(1C), 120.5(1C), 39.4(1C), 36.1(1C), 29.3(3C).ESI-HRMS(m/z):Calcd. for C18H21N4 + 293.1766, found 293.1759。
(4)铂配合物的合成
在100 mL的三口瓶中加入化合物e1(500mg,1.37mmol)和Ag2O(254mg, 1.1 mmol),氮气保护下向瓶中加入N,N-二甲基甲酰胺(2 mL),75℃条件下避光反应23 h。将反应液降温至25℃,向其中加入[PtMe2(SMe2)]2(393.2 mg, 0.685 mmol)的四氢呋喃溶液,25℃条件下反应24h。用滤膜过滤掉AgI,并将过滤后的反应液注入到氮气保护的三口瓶,将反应液加热至55℃反应2h。待反应液冷却至25 ℃,向其中逐滴加入对甲基苯磺酸(236 mg,1.51mmol)的四氢呋喃(2 mL)溶液,25℃反应30min。将反应液冷却至-40℃,加入化合物2-(2H-吡唑-3-基)-吡啶(292mg,1.37 mmol)的四氢呋喃溶液,加入醋酸钠,-40℃反应2小时,25℃反应24h。将反应液抽干,柱层析(二氯甲烷:甲醇= 30 :1)得到化合物g1-1(65 mg, 6.8 %)和g2-1(58 mg, 6.0 %)。
1H NMR (400 MHz,CDCl3) δ 9.40 (d, 1H, J = 5.6), 8.90 (s, 1H), 8.11-8.08 (m, 2H), 7.77 -7.74 (m, 3H), 7.65 (s, 1H), 7.50 - 7.42 (m, 2H), 7.23 (d,1H, J = 7.6), 6.59 (s, 1H). 13C NMR (100 MHz, CDCl3) δ 168.2 (1C), 166.1 (1C),154.6 (1C), 152.8(1C), 151.4 (1C), 144.3 (1C), 143.0 (1C), 139.6 (1C), 137.8(1C), 137.7 (1C), 133.0 (1C), 130.5 (2C), 130.4 (2C), 128.6 (1C), 126.4 (1C),125.9 (1C), 124.7 (1C), 122.2(1C), 118.9 (1C), 102.2 (1C), 38.5 (1C), 35.6(1C), 28.7 (3C). ESI-HRMS(m/z):Calcd. for C27H25F3N7Pt [M]+ 699.1771; found699.1764。
1H NMR (400 MHz,CDCl3) δ 9.09 (d, 1H, J = 4.0), 8.27(s, 1H), 6.56(s,1H), 3.90(s, 3H), 1.53(s, 9H). 13C NMR (101 MHz, CDCl3) δ 168.2 (1C), 166.1(1C), 155.0 (1C), 152.6 (1C), 151.3 (1C), 144.3 (1C), 143.0 (1C), 139.3 (1C),138.0 (1C), 137.6 (1C), 133.0 (1C), 131.0 (2C), 130.4 (2C), 127.0 (1C), 124.9(1C), 122.9(1C), 121.9 (1C), 120.2 (1C), 118.9 (1C), 102.2 (1C), 38.5 (1C),36.2 (1C), 28.7 (3C). ESI-HRMS(m/z):Calcd. for C27H25F3N7Pt [M]+ 699.1771; found699.1760。
实施例2
配合物g3的制备
(1)N-(2-甲基-嘧啶-5-基)-苯甲脒(c2)的制备
0℃下,将NaH(456 mg,19 mmol)加入到2-甲基-5-氨基嘧啶b2(1g,9.16 mmol)的二甲基亚砜(5 mL)溶液中。向溶液中加入苯甲腈a(788mg,7.64 mmol),并在0℃下反应1h。将反应液温度升至25℃,并在该温度下搅拌12小时。将水加入到反应液中,并将反应液降温到0℃使白色沉淀析出,抽滤,得到白色固体c2(1.301 g,产率81%)。1H NMR (400 MHz,DMSO) δ 8.22(s, 2H), 7.97(d, 2H, J = 7.6), 7.50-7.43(m, 3H), 6.83(s, 2H),2.57(s, 3H). 13C NMR (101 MHz, DMSO) δ160.2(1C), 156.3(1C), 150.0(2C), 142.4(1C), 135.3(1C), 130.4(1C), 128.0(2C), 127.2(2C), 24.9(1C). 13C NMR(100 MHz,CDCl3) δESI-HRMS(m/z):Calcd. for C12H13N4 [M+H]+ 213.1140; found 213.1135. IR3366, 3314, 3158, 1637, 1596, 1565, 1433, 1388, 1248, 745, 694 cm-1。
(2)2-甲基-5-(2-苯基-咪唑-1-基)-嘧啶(d2)的制备
将化合物c2(1.5g,7 mmol),氯乙醛(2.75g,14mmol,40%水溶液)溶于氯仿(10 mL)中, 在62℃条件下回流4h,TLC监测反应完毕。将反应液冷却到25℃,用二氯甲烷萃取三次并将有机相合并,无水硫酸钠干燥,减压浓缩,柱层析(洗脱剂:石油醚:乙酸乙酯=1:5(v/v))得淡黄色油状液体d2(1.05g,产率63%)。1H NMR (400 MHz, DMSO) δ 8.67(s, 2H),7.65(d, J = 1.2, 1H), 7.37-7.34(m, 5H), 7.26(d, J = 1.2, 1H), 2.67(s, 3H). 13CNMR (101MHz, DMSO) δ 166.5(1C), 153.7(2C), 146.2(1C), 130.9(1C), 129.6(1C),129.2(1C), 128.7(3C), 128.5(2C), 123.5(1C), 25.2(1C). ESI-HRMS(m/z):Calcd.for C14H13N4 [M+H]+ 237.1140; found 237.1133. IR 3081, 1737, 1643, 1555, 1468,1444, 1299, 964, 764, 743, 696 cm-1。
(3)(2-甲基-嘧啶-5-基)-1,2-二苯基-3H-咪唑-1-基碘(e2)的制备
在封管中加入2-甲基-5-(2-苯基-咪唑-1-基)-嘧啶d2(200 mg,0.85 mmol),二苯基碘鎓六氟磷酸盐(434.6 mg,1.02 mmol)和醋酸铜(20 mg,0.11 mmol)溶于DMF(2 mL),将管口用塞子拧紧,在100℃下反应18h。将反应液冷却,减压过滤,用少量四氢呋喃洗涤,干燥得到白色固体e2(230 mg,产率59%)。1H NMR (400 MHz,DMSO) δ 8.82 (s, 2H), 8.51 -8.48 (m, 2H), 7.57 -7.53 (m, 3H), 7.49 - 7.45 (m , 5H), 7.42 - 7.38 (m, 2H),2.68 (s, 3H). 13C NMR (101 MHz, DMSO) δ 169.4 (1C), 154.8 (2C), 145.6 (1C),135.2 (1C), 132.7(1C), 131.9 (2C), 131.0 (1C), 130.4 (2C), 129.5 (2C), 129.0(1C), 126.6 (2C), 124.9 (1C), 124.5 (1C), 121.2 (1C), 25.9 (1C). ESI-HRMS(m/z):Calcd. for C20H17N4 [M-PF6]+313.1448; found 313.1446。
(4)铂配合物的合成
在100 mL的三口瓶中加入化合物e2(500 mg,1.08 mmol)和Ag2O(200 mg,0.86mmol),氮气保护下向瓶中加入N,N-二甲基甲酰胺(3 mL),75℃条件下避光反应23 h。将反应液降温至25℃,向其中加入[PtMe2(SMe2)]2 (309.9 mg, 0.54 mmol)的四氢呋喃溶液,25℃条件下反应24 h。用滤膜过滤掉AgI,并将过滤后的反应液注入到氮气保护的三口瓶,将反应液加热至55℃反应2h。待反应液冷却后,向其中逐滴加入对甲基苯磺酸(205 mg)的四氢呋喃(3 mL)溶液,25℃反应30min。将反应液冷却至-40℃,加入2-(2H-吡唑-3-基)-吡啶(218 mg,1.026 mmol)的四氢呋喃溶液,加入醋酸钠,-40℃反应2小时,25℃反应过夜。将反应液抽干,柱层析(二氯甲烷:甲醇= 30 :1)得到化合物g3-1(123 mg, 15.9%)。1H NMR (400MHz,DMSO) δ 9.14 (d, J = 5.6), 8.23 -8.19 (m, 1H), 8.14 (s, 1H), 8.10 (d, 1H,J = 7.6), 7.77 -7.73 (m, 3H), 7.70 -7.68 (m, 2H), 7.60 - 7.52 (m, 6H),7.42(s, 1H), 7.30 (s, 1H), 2.77 (s, 3H). 13C NMR (101 MHz, DMSO) δ 165.9 (1C),157.4 (1C), 153.0 (1C), 152.3 (1C), 152.1 (1C), 143.1 (1C), 143.0 (1C), 142.1(1C), 140.6 (1C), 138.8 (1C), 137.1 (1C), 134.8 (1C), 132.9 (1C), 130.7 (2C),130.3 (1C), 129.9 (2C), 129.7 (2C), 126.5 (2C), 124.9 (1C), 123.0 (1C), 121.7(1C), 120.6 (1C), 120.4 (1C), 103.3 (1C), 21.7 (3C). ESI-HRMS(m/z):Calcd. forC29H21F3N7Pt [M]+ 719.1458; found 719.1457。
实施例3
配合物g1-1、g2-1、g3-1的四氢呋喃溶液(浓度为10-5 M)的紫外-可见吸收光谱以及配合物g1-1、g2-1、g3-1粉末状态下的发射光谱如图5,相应的吸收与发射光谱数据见表1。
表1 配合物的吸收与发射光谱数据
[a] 紫外/可见光谱于四氢呋喃中测量(10-5 M)
[b] 发射光谱于粉末状态下测量。
Claims (4)
1.一种铂-氮杂卡宾配合物,其特征在于:包括配合物g和g3,其中,g包括顺反异构体g1和g2;g1、g2和g3的结构通式如下所示:
(g1);
(g2);
(g3);
所述R1包括2-10碳烃基;R2包括2-10碳烃基;R3包括取代苯基;X包括碳原子;
R3的取代苯基中的取代基包括卤素原子、1-5碳烃基、1-6碳烷氧基中的任意一种或同时含有2-3个上述取代基。
2.根据权利要求1所述的一种铂-氮杂卡宾配合物,其特征在于:所述g1、g2和g3的结构式如下g1-1、g2-1、g3-1所示:
(g1-1);
(g2-1);
(g3-1)。
3.一种如权利要求1所述的铂-氮杂卡宾配合物的制备方法,其特征在于:包括配合物g和g3的制备方法,其中,配合物g的制备方法,包括如下步骤:
第一步,苯甲腈与胺反应:0℃条件下,将NaH加入到胺的二甲基亚砜溶液中,再加入苯甲腈,在0℃条件下反应1h,然后温度升至25℃,搅拌12h,搅拌结束后,将水加入反应液中,并将温度降至0℃,析出白色沉淀,抽滤,得到产物;
第二步,与氯乙醛反应生成咪唑衍生物:将第一步得到的产物和氯乙醛溶于氯仿中,在62℃条件下,回流4h,TLC监测反应完毕,将反应液冷却至25℃,用二氯甲烷萃取三次并将有机相结合,经洗涤干燥减压浓缩柱层析得到产物;
第三步,与烃基碘反应:在封管中加入第二步的产物、烃基碘和四氢呋喃,拧紧管口,在90℃下反应24h,将反应液冷却,减压过滤洗涤,得到产物;
第四步,串联反应:在三口瓶中加入第三步的产物和Ag2O,氮气保护下加入N,N-二甲基甲酰胺,75℃条件下避光反应23h,将反应液降温至25℃,加入[PtMe2(SMe2)]2的四氢呋喃溶液,25℃下反应24h,用滤膜过滤AgI,将过滤后的反应液注入到氮气保护的三口瓶,加热至55℃,反应2h,反应结束后,降至室温,逐滴加入对甲苯磺酸的四氢呋喃溶液,25℃下反应30min,反应结束后,冷却至-40℃,加入2-(2H-吡唑-3-基)-吡啶或2-(2H-吡唑-3-基)-吡嗪的四氢呋喃溶液,加入醋酸钠,-40℃反应2h后,升温至25℃,反应24h后,将反应液抽干柱层析得到g1和g2;
配合物g3的制备方法,包括如下步骤:
第一步和第二步与配合物g的制备步骤相同;
第三步,在封管中加入第二步的产物、二苯基碘鎓六氟磷酸盐和醋酸铜溶于DMF,将管口用塞子拧紧,在100℃下反应18h,将反应液冷却,减压过滤,用四氢呋喃洗涤,干燥得到产物;
第四步和配合物g的制备步骤相同,加入的第三步产物不同,反应结束后,得到g3。
4.一种如权利要求1所述的铂-氮杂卡宾配合物应用于有机发光二极管。
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