>5 ) is one of the important compounds of vanadium. Its color ranges from orange-yellow to deep red (generally orange-yellow), odorless, tasteless, toxic, and slightly soluble in water
Elements and compounds of gallium, indium and thallium
Time of Update: 2021-06-30
The valence electron configuration of thallium is 6s 2 6p 1 , because 6s 2 electrons have a strong drill-through effect and are not easy to lose, so TI+ is relatively stable .
Solubility and hydrolysis of iron-based element compounds
Time of Update: 2021-06-29
The weak acid salts, hydroxides and oxides of iron-based elements are insoluble in water .
Platinum elements and compounds
Time of Update: 2021-06-29
H 2 [PtCl 6 ]·6H 2 O is brown-red crystal, K[Pt(C 2 H 4 )Cl 3 ]·H 2 O(Zeise salt, the first An organometallic compound) is orange-yellow crystals, and the structure is shown in Figure 16-9 .
Elemental substances and compounds of technetium and rhenium
Time of Update: 2021-06-29
Technetium is the first synthetic element. Because technetium is rare and radioactive, there is not much research on the chemical properties of technetium
Nitrogen element and hydrazoic acid
Time of Update: 2021-06-18
1. 1 Elemental NitrogenThe two atoms in the N 2 molecule are joined by a triple bond, which is very stable at room temperature .
Due to process conditions, the potentially heavy drug Ao nitrogen flat compound was delayed by the FDA approval
Time of Update: 2021-01-19
On Tuesday, NASDAQ-listed Company Alkermes announced that it had received a letter from the U.S. Food and Drug Administration (FDA) on its new drug, APKS 3831 (Ao nitrogenpine/samidorphan), for adults with schizophrenia and bisomethic type I disorders.
nitrogen compounds by asymmetric hydrogenation of C = n bond catalyzed by cobalt
Time of Update: 2019-09-15
Lead chiral nitrogen-containing compounds are a class of dominant structural units, which are widely used in the synthesis of a variety of chiral pharmaceuticals, pesticides, catalysts and other functional molecules (Figure 1).
Wang Tao research group of Shaanxi Normal University: series reaction of isoquinoline nitrogen
Time of Update: 2019-07-22
Quinoline and isoquinoline are important structural units of alkaloids and drug molecules
As a member of the isoquinoline alkaloid family, N - fused polycyclic
membered nitrogen heterocyclic compounds by multiple domino cyclization of thioylide
Time of Update: 2018-10-30
Lead six and seven nitrogen heterocyclic compounds exist widely in medicine and bioactive molecules, so it is very important to synthesize these compounds through cheap raw
Deng Liang group of Shanghai Institute of organic chemistry made progress in activating nitrogen with organometallic compounds
Time of Update: 2018-03-12
Nitrogen is the main component of the atmosphere, and the development of efficient catalytic conversion from nitrogen to nitrogen-containing compounds under mild conditions is one
