Chapter 217: It will happen

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"Brother, how is it?" Han Jiaying turned her head and asked.
Xu Qiu put down the silicone plate and UV lamp in his hand, and said: "This dot plate is dark and light, and there are other shallow shadows. The lighter is the raw material, and the darker is the product."
"There is only one dark product spot, so the yield should not be low." Han Jiaying responded with a capillary dipped in the solution and spotted it vertically on the silica gel plate.
Xu Qiu said, "It was a little unexpected. I expected that 50% would be good, but now it looks like it might be close to 70-80%."
Then, he picked up another piece of silica gel, irradiated it with an ultraviolet lamp, and said, "My other reaction, the result of the plate is similar, how about yours?"
"It should be a success. There is a product that is deep, not many impurities, and the raw materials are shallow. However, the next step of the reaction has to go through the column." Han Jiaying paused:
"It feels that the reaction of small molecules and the synthesis of products are only the first step in a long march. The subsequent separation and purification are troublesome."
"Yeah," Xu Qiu nodded. "If you change the molecular structure a little bit and use a different system, the conditions will be different. If you mix in a little impurity, you need to purify it again, so you must be careful every time. Fortunately, there is a high-pressure liquid chromatograph in the laboratory, which can greatly improve the efficiency of the experiment."
After spending some time, the two handled the reaction and got four sets of crude products.
Xu Qiu stood by the sink, handling the used glass instruments, and asked casually, "What time is it now?"
"Um..." Han Jiaying was cleaning the fume hood. She glanced at the stopwatch hanging next to the fume hood, "Five o'clock." There is no clock hanging on the wall in the laboratory, and mobile phones are generally not brought in. Stopwatches It is a commonly used timing tool.
'Once the liquid chromatograph is turned on, it will run continuously for at least an hour and a half, or even two hours, which is too long,' Xu Qiu thought for a while and said: "If you pass the column now, the time is a bit too late. Let's talk about it after dinner. "
"Okay," Han Jiaying naturally had no objection, "I have already sorted it out here, brother, how about you?"
"I'll be fine soon," Xu Qiu speeded up the movement in his hand slightly, "for one minute."
The school girl walked to his side, "Then I will wait for you."
After finishing the lab, the two returned to the office.
Han Jiaying was sitting on the sofa with one hand supporting her cheek, her eyes turned on Xu Qiu, not knowing what she was thinking.
Xu Qiu didn't notice her abnormality. After he washed his hands, he returned to the desk and sat down, thinking about the plan for the evening experiment in his mind.
‘My two products are the final product, that is, the 3D-PDI molecule. After being purified, they can be directly used for device testing. They can be separated and purified first tonight, and then put directly into the simulation laboratory to test their performance. ’
‘In addition, the monobromine substitution products of the two molecules of PDI-5 and PDI-6 have bottomed out, and another batch will be synthesized. ’
‘Also, PDI-8, which has a longer side chain, can also be synthesized into a batch for use...’
"Brother~" The voice suddenly rang in Xu Qiu's ear, pulling him back to reality.
As soon as he looked up, Han Jiaying didn't know when she came to her side. Her face was slightly red, and she was resting on the glass of the desk partition with one hand. The indoor air-conditioning was always on. The school girl didn't wear a jacket, and only had a beige sweater on her upper body .
Xu Qiu calmed down, "What's the matter?"
Han Jiaying hesitated for a few seconds, then plucked up the courage to say:
"Brother, shall we... be together?"
Xu Qiu's body shuddered suddenly, and his brain started to rotate rapidly:
‘Fuck, the school girl confessed to me, so suddenly. ’
‘It doesn’t seem to be very sudden, we seem to have crossed the line of friends long ago. ’
‘Promise, promise or promise? ’
‘The three options are the same length, choose C. ’
‘How to respond? ’
‘%@%……’
‘Hate yourself is not Tao Yan, I have no experience at all. ’
‘But you can’t keep dragging, it’s the only way...’
Thousands of words finally converged into one word, and he said from Xu Qiu: "Okay."
Han Jiaying's face was shy, her arms opened slightly, and she made a gesture of begging for a hug.
Xu Qiu was a tall man and directly picked up the school girl princess and threw it on the bed. (Delete this line)
...
More than an hour later.
The two went to the cafeteria to settle the dinner and returned to the micro-analysis building.
Take a break and continue the experiment.
Xu Qiu talked about his previous division of labor, and Han Jiaying naturally had no opinion.
However, because of some... small accidents, they were a bit rushed in time.
Fortunately, after the start of school, the departure time of the last school bus was delayed to 9:30, which is half an hour longer than the previous day.
Finally, Xu Qiu used a liquid chromatograph to separate and purify his two samples, and successfully obtained two 3D-PDI molecules, the yields were 76% and 71%, and the yield was close to 100 mg.
After receiving the materials, he immediately copied them to the simulation laboratory II, and handed them over to the simulation experimenters to prepare the devices and traverse the existing donor library.
Han Jiaying cast three reactions, namely the bromination reaction of PDI-5 and PDI-6, and the synthesis reaction of PDI-8.
The first two reactions each put 1 gram of reaction materials into the reaction, and the reaction time is about two hours.
She checks the real-time products every once in a while. Because she has experience and knows the product information corresponding to each sample point, she can stop the reaction in time when the number of 1-brominated products is the most.
In theory, the yield will be higher than the previous reaction, but the time is limited. These two reactions only stop when the product is mixed.
For the third reaction, 5 grams of raw materials were used, and the reaction time was 24 hours, and it took the next day to process.
...
On the school bus.
After the two confirmed their relationship, they nestled together naturally.
Han Jiaying whispered, "Brother, should we make our relationship public?"
Xu Qiurou said: "I can do it, what do you think?" For him, love belongs to two people only. The opinions of others are not important at all, and it makes no difference whether they are open or not.
"I think we should keep a low profile in the group, privately..." Han Jiaying paused and said, "Anything will do."
"All by you." Xu Qiu petted her hair and rubbed her hair.
"Brother~ I slept for a while, and called me when I got to school." After speaking, Han Jiaying shrank into his arms.
"Okay." Xu Qiu also closed his eyes and began to think back to the past and the school girl.
Today's confession was a bit sudden, but it seemed that everything came to pass.
The relationship between the two is much closer. These lovers do it every day, except for the last step...
The names of each other have not changed. Xu Qiu would always feel too ashamed to take a nickname such as "baby" and "baby", mainly because "school girl" and "senior brother" are called smoothly.
After thinking about it all the way, the school bus finally reached the Handan campus and stopped slowly.
Xu Qiu awoke the school girl, and the two slowly returned to the bedroom holding hands.
...
the next day.
Xu Qiu got the results of Simulation Lab II early in the morning. The 3D-PDI molecules he synthesized had a maximum efficiency of 4.37%.
This data is not bad, it has exceeded the previous review of the JACS, 4% efficiency.
If the results are sorted out, it should be no problem to post an article in the second district, but it is not easy to post an article in the first district. This is the disadvantage of losing the opportunity.
Moreover, even if you want to post to the second district, it takes about a month to do experiments and write articles, or even more.
There is no way to do research related to the synthesis of small organic molecules, the fixed time cost is too long.
The quality of articles is more important to him now, and there is no shortage of articles in the second area.
To complete the advanced tasks of the system, you need to publish three SCI one-zone articles. In addition to the AM that has been received, there is also a revised AEM, which means that he still lacks a one-zone article.
If the efficiency is raised to 6% or 7%, there will be a chance to make a breakthrough.
If it can reach 8%, which is close to the world record, one area is very stable. If you keep an AEM, there is a high probability that AM will go up.
If it can reach more than 10%...
Although the possibility is extremely low, if it really reaches 10%, it is almost possible to publish a "Nature" big son. This is a breakthrough development, which means that non-fullerene receptors will be on the stage of history~ EbookFREE.me~ Of course, if you want to publish a CNS main journal, 10% is not enough. From the perspective of efficiency alone, it is no less than 15%, and there is a lot of preliminary work.
Therefore, Xu Qiu didn't think much, and decided to continue to improve the molecular structure.
In fact, he had considered using Simulation Lab II to help him optimize the molecular structure, but he did not do so after careful consideration.
On the one hand, the cycle of synthesizing a molecule is very long, involving multiple reactions, which may take one day, two days or even longer. Even if multiple reactions are carried out at the same time, on average, one molecule is completed in almost one day, and the integral consumption is too fast.
On the other hand, if the system is used to prepare devices in batches to explore the optoelectronic properties of materials, because there are multiple device laboratories in the simulation laboratory, the time for cleaning the substrate, spin-coating the transmission layer, and evaporation can be ignored. Considering the spin coating time, one slice per minute, sixty slices per hour, is the same time in one day, and thousands of conditions can be explored.
Based on the status quo of Simulation Lab II, he also planned the cooperation mode between him and the school girl before -
He mainly made devices in Handan, and the school girl was mainly responsible for synthesis in Zhangjiang.
Such a plan can efficiently use the laboratories on both sides of Handan and Zhangjiang, and increase the work efficiency by at least 50% compared with two people piled together.
This is also the reason why Xu Qiu took her through every previous experiment. It was to train her into an organic synthesis experimenter who can stand alone and pave the way for the promotion of this cooperative model.
Originally, this arrangement didn't matter, but now the two are suddenly together.
It's a pit...
On the second day of love, I was forced to go to another place to find reason.
It can only be said that God's will make people.