thus-synthesized,as-synthesized,pre-synthesized

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yinghua2112 共回答了11个问题 | 采纳率100%
因此,合成,如合成的,预合成
1年前

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英语翻译The diamine in 3 was synthesized by diaza-Cope rearrange
英语翻译
The diamine in 3 was synthesized by diaza-Cope rearrangement reaction in a one-pot reaction (Scheme 1).Sequential addition of the two aldehydes to 4 results in efficient formation of the mixed diimine (6) followed by the rearrangement reaction to give 7.The two resonance-assisted hydrogen bonds in 7 drive the rearrangement
reaction to completion.We first synthesized a Co(III) complex of 7 using pyridine as a base.The crystal structure of the Co(III) complex (Figure 1) shows that the quinoline group coordinates to the metal,thereby forcing the nitrophenyl group to occupy the axial position as desired.Interestingly,a pyridine molecule is coordinated
to the cobalt complex and positioned almost parallel to the nitrophenyl group.The two groups are about 3.26-3.90 A apart.
股慌1年前2
取名好苦 共回答了20个问题 | 采纳率95%
在3二胺合成了二氮杂-应付在一锅煮反应(图1)重排反应.除了这两个序列醛4结果在有效形成混合二亚胺(六)重排反应,随后给予7.这两个共振协助7车道氢键重排
反应完成.我们首先合成了7钴(Ⅲ)配合物吡啶为基地.的CO(Ⅲ)配合物(图1)的晶体结构表明,喹啉组坐标,以金属,从而迫使硝基苯集团占据轴向位置应有的作用.有趣的是,吡啶分子协调复杂的钴和定位几乎平行的硝基苯组,两组相隔约3.26-3.90.
英语翻译We have recently synthesized Au nanocrystals by using aM
英语翻译
We have recently synthesized Au nanocrystals by using a
MW-polyol method.13-15 When AuCl4- ions were reduced in
EG in the presence of the polymer surfactant PVP,triangular,
square,rhombic,and hexagonal nanoplates were preferentially
produced.When these nanostructures were used as seeds,Ag+
was reduced in order to synthesize Au core-Ag shell nano-
structures,denoted as Au@Ag.16Then,we have succeeded in
preparing some new Au@Ag nanocrystals having a good
correlation between the Au core and Ag shell.However,their
exact three-dimensional (3-D) crystal structures and the reason
why a good correlation arises in shape between the Au core
and Ag shell were not clarified in our previous communication.
Gold and silver have the same FCC crystal structures,and
the lattice constants of Au (0.0479 nm) and Ag (0.4086 nm)
are very similar.Therefore,it is known that both Au/Ag alloys
and various kinds of Au@Ag core-shell structures can be
prepared from Au/Ag reagents using various methods.17-27
Fortunately,Au@Ag core-shell structures with thin boundary
layers can easily be observed from transmission electron
microscopy (TEM) images,because Au cores and Ag shells
appear as clear black and blight contrasts,respectively.10,21
Therefore,we have found that there is a good correlation
between Au cores and Ag shells from TEM images of various
new Au@Ag core-shell structures.16
In this study,we have synthesized Au@Ag core-shell
nanostructures at different [AgNO3]/[HAuCl4] molar ratios.The
TEM images of Au@Ag crystals from different view angles,
selected area electron diffraction (SAED) patterns,and energy-
dispersive X-ray spectroscopy (EDS) analyses give new detailed
information on 3-D crystal structures and growth mechanisms
of each Au@Ag crystal in the presence of PVP.On the basis
of these data,we have succeeded in the clarification of general
growth mechanisms of FCC types of single crystals in the
presence of a polymer surfactant,which is difficult to obtain
from monometallic single crystals.
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偶来自火星 共回答了19个问题 | 采纳率89.5%
我们已经近来合成Au nanocrystals通过使用当AuCl4-离子是的时候,MW多羟基化合物method.13-15被在中减少的例如在聚合物的面前表面活性剂PVP三角的方形菱形的和六角形的
nanoplates是优先地是生产.当这些的时候,nanostructures被使用当为了合成Au核心,Ag+
是的种子被减少的时,Ag外壳nano-结构作为Au@Ag.16Then表示我们
已经成功在中
VHDL VGA中的综合问题Signal colour cannot be synthesized, bad synch
VHDL VGA中的综合问题
Signal colour cannot be synthesized, bad synchronous description. The description style you are using to describe a synchronous element (register, memory, etc.) is not supported in the current software release.
patter: process (x,y,mode,clk25,rst,colour)
variable count:integer range 0 to 25000000;
begin

case mode is
when "00" =>
if clk25'event and clk25 = '1' then
count:=count+1;
if count =25000000 then
colour
if clk25'event and clk25='1' then
if x =80 then
colour
freetalk81年前1
dongweiyu 共回答了20个问题 | 采纳率85%
一个进程里只能有一个 if clk25'event and clk25='1' then
建议在if clk25'event and clk25='1' then 后再写case when .
英语翻译是翻译这个:From D-glucosamine hydrochloride was synthesized,f
英语翻译
是翻译这个:From D-glucosamine hydrochloride was synthesized,for the first time,three new optically active derivatives of D-glucosamine-pyrrole with the pyrrole group unsubstituted in the 2- and 5-positions.
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虚心学习学校 共回答了23个问题 | 采纳率82.6%
首次从D-氨基葡萄糖合成盐酸盐!