I Have a Research Support System

Seeing Xu Qiu's puzzled expression, Wei Xingsi explained: "I contacted Professor Tang Yunkun from the Department of Physics, and I can use their group's funds to buy TRPL instruments."

"Mr. Tang is doing theoretical physics research, and his main research direction is organic and inorganic semiconductor materials. His research group's funding is endless and is about to expire. It just so happens that TRPL fits his research direction, so let's borrow it first." 'Give it to us, and the microwave reactor will be reimbursed with our own funds," Wei Xingsi smiled, and said, "We can't let them just buy a microwave reactor for synthesis."

Xu Qiu nodded, and muttered to himself, Teacher Wei really went to PY again, it can only be said that the way is really wild.

Scientific research funds are also time-sensitive. For example, the general projects of the National Natural Science Foundation of China usually last for four years. After four years, the funds that have not been spent will be recovered.

Of course, it is generally not too long to run out.

Most of the research groups are short of funds, unless it is a group of big bosses who are constantly working on various key projects, or this kind of theoretical research does not need to buy materials, and the funds can only be purchased for computers and other equipment. Cases where funds are overdue.

"Is the microwave reactor the distributor I contacted CEM, or..." Xu Qiu tentatively asked.

"I'll take care of it, I have their contact information." Wei Xingsi answered.

"Well, okay." Xu Qiu responded, this is not very surprising, for various instruments and equipment related to scientific research and special materials, because the sales are limited, the sales of the manufacturer will take the initiative to expand the business, using mass emails, door-to-door Visit and other methods, and leave contact information for the research team of the university.

He had received such emails before, and it was a newly established optoelectronic materials company promoting their products.

Xu Qiu also curiously asked how the other party found him. After the other party replied, he realized that it was because of an article published before, and their email contact information was listed in the document.

However, the price of the unit sold by the other company is a bit expensive, and the price/performance ratio is not as high as that of the company in Shencheng. Therefore, Xu Qiu has no intention of cooperating with them, and the contact information is left in the mailbox.

After dealing with the matter of the microwave reactor, Xu Qiu was about to leave when Old Wei raised his hand, "By the way, how is your non-fullerene review going?"

"The second part has been written, and now I'm writing the third part." Xu Qiu thought to himself, didn't he just ask a few days ago, could it be...

"Very good," Wei Xingsi nodded. "After a few days, the writing is almost done. You can discuss it with Mr. Tang, ask him to write something about charge transport, and then send him a second newsletter."

'It turned out to be like this, this may be one of the prices for Teacher Wei's PY. ’ But Xu Qiu didn’t have any objection to this, since he was a first-time writer anyway, and having another corresponding author would have little effect on him, so he replied: “No problem.”

"There are two recent organic literatures on the table, remember to bring them with you."

"good."

After confirming that Teacher Wei had nothing else to do, Xu Qiu returned to 216 with a few documents.

After the group meeting ended, it was not past 11:30. Although it was working hours in principle, everyone in the office was talking and laughing at this time, paddling and touching fish.

During this period of time, Teacher Wei generally doesn't care too much, unless there are important experiments to be completed.

As soon as Xu Qiu showed his face, he attracted everyone's attention. He remembered the 2,500 yuan bonus he had just received, waved his hand, and invited everyone to drink a cup of milk tea.

She thought about the cover of the article again, and planned to find Tian Qing, but when he passed by Han Jiaying, the junior girl suddenly tugged on his sleeve, and asked curiously, "Brother, why are you looking for Teacher Wei?"

"We talked about the matter of the microwave reactor, and now we have basically settled the matter." Xu Qiu explained briefly in a low voice, without mentioning the matter of PY.

"Oh, that's it." Seeing this, Han Jiaying didn't ask much.

To appease the school girl, Xu Qiu continued to walk towards Tian Qing, saw that she was browsing Wiley's official website, and took the initiative to say: "The matter of the cover picture..."

Tian Qing raised her head and explained: "I just flipped through the covers of previous issues and found a lot of inspiration." Then, she patted her chest and vowed: "The topic of your article is organic photovoltaics, don't worry, Don’t worry, just leave it to me, and I promise to complete the task.”

"Okay, please." Seeing this, Xu Qiu was relieved a lot.

He is quite confident in Tian Qing's ability, as long as she takes it seriously, it shouldn't be bad.

...

The organic trio's main work this week is still synthetic material.

So, after lunch, the three went to Zhangjiang together.

Xu Qiu has a lot of responses to vote for today, there are four in total.

Three of the reactions are based on the synthesis of primary 3D-PDI molecules with benzene ring as the core unit, namely PDI3-B-5, PDI3-B-6, and PDI3-B-8.

The difference between the three molecules is that the side chains at the nitrogen atoms of PDI are different.

This reaction has been performed before, starting with a monobromo substituted of the simple PDI molecule and a 1,3,5-triboronate substituted benzene for a Suzuki coupling reaction.

However, the amount of feed was very small at that time, just to explore the conditions.

Now that the conditions are familiar, it is time to start mass promotion.

This time, he intends to dose 500 mg of each ingredient.

If the experiment goes well, hundreds of milligrams of the product can be obtained, which is enough for him to use for a long time.

Besides these three reactions, the last one is based on the further optimization of the second-generation 3D-PDI molecule, PDI3-BX-5, that is, the introduction of heteroatom selenium.

Last week, because of the redundant reaction sites on the first-generation 3D-PDI molecule, the first step in the introduction of heteroatom selenium, nitration, failed there.

In the second generation of 3D-PDI molecules, the redundant reaction sites have disappeared, and the nitration reaction becomes very stable.

However, the raw material is only about 40 mg, which is a bit urgent...

We can only hope that the product has more than 15 mg, so that we can use the simulation experiment system to know whether the photoelectric performance of the material has been further improved.

...

At one o'clock, the organic trio arrived at Microelectronics Building A501.

After resting for a while, the three of them started to prepare for the experiment. Afterwards, they put on all their equipment and rushed into the laboratory, each occupying a fume hood.

Xu Qiu calculated the time, the nitro reaction time is eight hours, now it is 1:30, the last school bus is 9:30 in the evening, it must be late, it seems that today I will stay in Zhangjiang again.

For the other three Suzuki coupling reactions, because they are reactions of small molecules rather than polymerization reactions, the reaction time is shorter, about four hours.

Based on his comprehensive judgment, he decided to vote for the nitration reaction first.

It was time to play with fuming nitric acid again. After Xu Qiu made other preparations, he carefully took out the reagent bottle of fuming nitric acid from the special reagent cabinet for acid release, and then prepared the dichloromethane solution of fuming nitric acid in the fume hood. .

It is called fuming nitric acid, and it will indeed "fume". No matter when opening the reagent bottle or during the transfer process, white smoke will come out. This is formed when the volatilized nitric acid molecules encounter water vapor in the air. Of course, due to Nitric acid itself will decompose to produce nitrogen dioxide, so it will also be accompanied by the appearance of reddish-brown gas.

For the sake of laboratory safety, there are multiple reagent cabinets in the laboratory. There are ordinary reagent cabinets for general solvents, explosion-proof reagent cabinets for some dangerous drugs, and special reagent cabinets for acids. There is a list of medicines on the cabinets, with Chinese and English names, aliases, approximate stocks, and printed MSDS information.

Although there are reasons to deal with the surprise security inspections of schools and departments, sorting out this information can still play some role.

Moreover, the current policy trend is becoming more and more strict. In principle, the amount of reagents purchased should not exceed the amount used by the laboratory for one month. Moreover, there are stricter review procedures for acetone, a solvent that is prone to poisonous production, and large quantities of stockpiling are not allowed. .

It is still necessary to grasp the existing drug inventory in the laboratory. If a large amount of drugs are found out, students are usually fine, and Teacher Wei may be blamed.

Apart from the fact that fuming nitric acid is dangerous to use, the nitration reaction itself is not difficult, and Xu Qiu completed the reaction very quickly.

This was followed by three more Suzuki coupling reactions.

The solvent tetrahydrofuran THF was redistilled, and experimental equipment such as glass instruments and nitrogen balloons were prepared.

This reaction is not low difficulty, THF/water two-phase reaction system, and requires nitrogen protection, it is easy to make mistakes.

Therefore, Xu Qiu concentrated on the details of each experiment, and also applied some small techniques summed up in the early Stille coupling reaction, such as applying vacuum silicone grease to ensure airtightness.

...

"It's finally done." Xu Qiu let out a long breath.

He stared at the four reaction vials for a while, recalling the operation when casting the reaction, and felt that there should be no problem, so he turned his attention to the laboratory.

Han Jiaying was away, and she started the synthesis of two 3D-PDI molecules designed by herself. Today was just the first reaction. After submitting two reactions, she greeted Xu Qiu and returned to the office.

Chen Wanqing was there, she was sitting on a round stool, operating the liquid chromatograph.

Xu Qiu walked towards the senior sister, stood still behind her, deliberately imitated Teacher Wei's tone, and greeted: "How is it?"

Chen Wanqing trembled subconsciously, turned her head and gave Xu Qiu a supercilious look, but still explained: "From the results of the paneling, the reaction is not bad, separation and purification should not be difficult."

Xu Qiu casually asked, "Is this unit A or unit D?"

"Unit D, I finished the synthesis last week and didn't come to deal with it," Chen Wanqing pointed her head towards the fume hood next to her. "Here, unit A is still over there. The last step of reaction, I just submitted it not long ago."

"Well," Xu Qiu nodded, "Then the final product will be available tomorrow."

"Yeah, I hope C4 can be more powerful this time." Chen Wanqing shrugged, obviously not confident.

"Believe in yourself, this time it will work." Xu Qiu encouraged, and then silently added "it's strange" in his heart.