CN104557931B - N-吡啶基苝四甲酰二亚胺的制备及其光催化制氢性能 - Google Patents
N-吡啶基苝四甲酰二亚胺的制备及其光催化制氢性能 Download PDFInfo
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- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
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Abstract
本发明涉及一类N‑吡啶基苝四甲酰二亚胺及其制备方法和应用。该化合物利用取代苝酐与4‑氨基吡啶在高温条件反应制备,工艺过程简单易行。将N‑吡啶基苝四甲酰二亚胺与丁二酮肟咕络合物结合,可作为用于太阳能可见光催化分解水制氢的光催化剂,N‑吡啶基苝四甲酰二亚胺吸收可见光,产生电子,通过配位键传导给金属钴,进而催化水的分解制氢。
Description
技术领域
本发明属于N-吡啶基苝四甲酰二亚胺的制备及其在新能源领域的应用。具体涉及N-吡啶基苝四甲酰二亚胺的制备方法及其该材料作为光催化剂在太阳能可见光分解水制氢中的应用。
背景技术
进入二十世纪以来,人类的工业文明得以迅猛发展,由此引发的能源危机和环境污染成为亟待解决的的严重问题,利用和转换太阳能是解决世界范围内的能源危机和环境问题的一条重要途径。光解水制氢是太阳能光化学转换与储存的最好途径,因为氢燃烧后只生成水,不污染环境,是便于储存和运输的可再生能源;
然而新烟碱杀虫剂大量频繁的使用造成了较为严重的抗性问题,在一定程度上限制了该类化合物的应用;同时该类化合物对蜜蜂的毒性已日益引起人们的关注,都成为制约此类化合物发展的重要问题。并且新烟碱类杀虫剂主要对同翅目和鞘翅目害虫高效,其相对较窄的杀虫谱也限制了虫害防治方面的用药选择性;
因此,如何对有具高活性的硝基亚甲基化合物进行结构改造,以产生新的、更有效的杀虫剂,解决新烟碱类杀虫剂的抗性问题,扩大杀虫谱,使其应用于杀虫剂就成为本发明需要解决的技术问题。
发明内容
本发明目的在于提供一类N-吡啶基苝四甲酰二亚胺化合物及其制备方法;
本发明的另一个目是N-吡啶基苝四甲酰二亚胺作为光催化剂作用于太阳能可见光催化分解水制氢的应用;
本发明的目的通过以下技术方案来实现;
N-吡啶基苝四甲酰二亚胺,通式为(A):
式中:
R为取代或未取代的苯基;
本发明化合物的制备方法:
本发明化合物的制备方法可以是本领域常用的制备方法,本发明提供了一种优选的通式(A)所述的化合物制备方法,包括方法:
将式(b)化合物和式(c)化合物反应,从而得到式(A)化合物;
所述反应温度为150-250℃,较佳地为200-250℃,更佳地为230℃;
所用的溶剂选自:喹啉或咪唑,优选喹啉。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法,通常按照常规条件,或按照制造厂商所建议的条件。除非另外说明,否则百分比和份数按重量计算;
实施例1.
1, 7-二(4-叔辛基酚氧基)-3,4,9,10-苝四酸酐的合成
向250 mL三口烧瓶中加入150 mL的DMF,然后加入4.01g的1,7-二溴苝酐、6.01 g的辛基酚和4.75 g的 CsCO3,在氩气保护下,加热回流反应。 TCL跟踪反应原料消失,5小时后反应完成,停止加热。冷却至室温,加入80 mL冰醋酸,室温下继续搅拌1个小时。所得溶液冷冻析出固体,抽滤并用冷的甲醇洗涤数次,干燥所得固体;
(2)POPPDA的合成
称取上述干燥后的固体0.48g置于100mL的三口烧瓶中,加入20mL干燥过的喹啉,然后加入0.19g4-氨基吡啶,0.07g醋酸锌,通入氩气,并及加热至回流反应20个小时,反应完成后,停止反应并冷却至室温,然后向其中加入100mL2N盐酸搅拌0.5个小时,搅拌完成后抽滤,用水和甲醇洗涤,放入干燥器干燥,即得粗品。利用硅胶柱层析提纯(V二氯甲烷:V甲醇=50:1),收集第二色带洗脱液,减压蒸干得暗红色产物,即为纯品;
化合物试验数据:
1H NMR(400 MHz, CDCl3): δ(ppm) 9.543 (d, J = 8.4 Hz, 2H, H-1, H-1′),8.784 (d, J = 5.2 Hz, 4H, PyH), 8.571 (d, J = 8.4 Hz, 2H, H-2, H-2′), 8.206(s, 2H, H-3), 7.469 (d, J = 8.8 Hz, 4H, PhH), 7.304 (d, J = 6.0 Hz, 4H, PyH),7.076 (d, J = 8.8 Hz, 4H, PyH), 1.764 (s, 4H, 2CH2), 1.404 (s, 12H, 4CH3),0.773 (s, 18H, 2C(CH3) 3). 13C NMR (400 MHz, CDCl3): δ(ppm) 29.72, 31.85,38.52, 57.09, 119.25, 121.61, 123.28, 124.40, 128.5, 129.06, 130.36, 133.68,142.89, 148.14, 150.89, 151.78, 155.95, 162.29. HRMS (EI+): calcd forC62H57N4O6, 952.4200; found, 952.4207。
实施例2.
丁二酮肟钴络合物[Co(DH)(DH2)Cl2]的合成:
在250mL三口烧瓶中加入25 g(0.105 mol)水合氯化钴,750 mL丙酮和24.5g(0.211 mol)丁二酮肟,混合物搅拌10min,过滤除去不溶物。所得母液过夜静置,析出绿色晶体,过滤,丙酮洗涤,干燥得产品28.5 g(76%)。
实施例3.
吡啶基丁二酮肟钴络合[(py)Co(DH)(DH2)Cl]的合成:
将实施例2中合成的丁二酮肟钴络合物(3.3g,0.009mol)悬浮在85mL氯仿溶剂中,向溶液中加入吡啶(1.8g)并振荡。反应5分钟后加入30mL水,强力搅拌2个小时,除去水层。氯仿层水洗3次,旋干大部分氯仿,加入95%的乙醇溶液,析出固体,使用二氯甲烷乙醇溶剂重结晶,得褐色晶体,产率60%。Anal. Calcd for C13ClCoH19N5O4: C, 38.9; H, 4.7; Co,14.6, Found: C, 38.8; H, 5.0; Co, 14.7。
实施例4.
分别称取牺牲剂1.25g的Na2S和0.25g的Na2SO3溶入盛有50mL蒸馏水的100mL光照一侧为平面的Prex玻璃平底反应瓶中。称取实施例1制备的N-吡啶基苝四甲酰二亚胺和实施例2中制备的丁二酮肟钴络合物0.1g加入反应瓶中;
将反应瓶放在磁力搅拌器上搅拌,将三通进样玻璃瓶塞插入反应瓶中,以氮灯作为模拟太阳光源,打开氛灯稳流电源,滤光片滤去<420 nm的紫外光,光源经滤光片滤光后照射至反应瓶侧面,检测可见光照射6h的复合催化剂的光催化分解水制氢活性。氢气的检测采用气相色谱仪装配的TCD检测器,TDX-01填充柱。太阳能可见光催化分解水产H2结果如表1所示;
表1: 太阳能可见光催化分解水产H2结果
光照时间(h) | 1 | 2 | 3 | 5 | 5 | 6 |
H2 (mL/g ) | 0.81 | 2.10 | 3.81 | 5.56 | 7.43 | 9.16 |
实施例5.
分别称取牺牲剂1.25g的Na2S和0.25g的Na2SO3溶入盛有50mL蒸馏水的100mL光照一侧为平面的Prex玻璃平底反应瓶中。称取实施例1制备的N-吡啶基苝四甲酰二亚胺和实施例3中制备的丁基丁二酮肟钴络合物0.1g加入反应瓶中;
将反应瓶放在磁力搅拌器上搅拌,将三通进样玻璃瓶塞插入反应瓶中,以氮灯作为模拟太阳光源,打开氛灯稳流电源,滤光片滤去<420 nm的紫外光,光源经滤光片滤光后照射至反应瓶侧面,检测可见光照射6h的复合催化剂的光催化分解水制氢活性。氢气的检测采用气相色谱仪装配的TCD检测器,TDX-01填充柱。太阳能可见光催化分解水产H2结果如表2所示;
表2: 太阳能可见光催化分解水产H2结果
光照时间(h) | 1 | 2 | 3 | 5 | 5 | 6 |
H2 (mL/g ) | 0.81 | 2.10 | 3.81 | 5.56 | 7.43 | 9.16 |
在本发明提及的所有文献都在本申请中引用作为参考,就如同每一篇文献被单独引用作为参考那样。此外应理解,在阅读了本发明的上述讲授内容之后,本领域技术人员可以对本发明作各种改动或修改,这些等价形式同样落于本申请所附权利要求书所限定的范围。
Claims (5)
1.具有式(A)所示结构的化合物:
式中:R为2,4,4-三甲基戊基取代的苯基。
2.一种权利要求1中所述式(A)化合物的制备方法,其特征在于:
将式(b)化合物和式(c)化合物反应,从而得到式(A)化合物;
上述各式中,R如权利要求1中所定义;
所述反应温度为150-250℃;
所用的溶剂选自喹啉或咪唑。
3.权利要求1中所述式(A)化合物作为光催化剂作用于太阳能可见光催化分解水制氢的应用。
4.如权利要求3所述的应用,其特征在于,采用氙灯作为模拟太阳能光源,采用滤光片滤掉紫外光,评价太阳能可见光催化分解水分解制氢产率。
5.如权利要求3所述的应用,包括下列步骤:
1)分别定量称取牺牲剂Na2S和Na2SO3溶入盛有50mL蒸馏水的100mL光照一侧为Prex玻璃的平底反应瓶中,称取适量的权利要求1中所述式(A)化合物加入至反应瓶中;
2)将反应瓶放在磁力搅拌器上,将三通进样玻璃瓶塞插入反应瓶中,打开氙灯稳流电源,用滤光片滤去<420nm的紫外光,光源透过滤光片后照射至反应瓶侧面;
3)采用气相色谱仪配备的TCD检测器,TDX-01填充柱对生成的气相产物进行检测,评价太阳能可见光催化分解水制氢产率。
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Granted publication date: 20160817 Termination date: 20181025 |