$\mathrm { C u C l } _ { 2 } { \cdot } 2 \mathrm { H } _ { 2 } \mathrm { O } \left( 1 \ \mathrm { m m o l } , 2 0 \ \mathrm { m L } \right.\mathrm{CH_3COCH_3)}$ and 2-(2-hydroxyphenyl)benzothiazole $\mathrm {(1} \ \mathrm{mmol,20}\ \mathrm{mL\ DMF)}$ were stirred at room temperature for $\mathrm{1\ h} $, then filtered, and the filtrate was slowly evaporated. After three weeks, some dark red rhombic single crystals were obtained from the mother liquor. The product was isolated, washed with deionized water and $\mathrm {DMF}$, and dried in a vacuum desiccator containing $\mathrm { { P _ { 4 } O _ { 1 0 } } }$ to yield compound $\mathbf A$. Elemental analysis indicated that $\mathbf A$ contained $\mathrm{C : 4 8 . 2 4 \%}$ and $\mathrm{ N: 7 . 0 3 \%}$, with the copper ion being five-coordinate and the presence of a symmetric center in the molecule.

The thermal decomposition curve of compound $\mathbf A$ is shown below.

<MultiModal>![The figure shows the thermal decomposition diagram of compound A. The horizontal axis is labeled Temperature (K), with tick marks starting at 273 K and extending to the right at intervals of 200 K, labeled as 473, 673, 873, 1073, and 1273 K. The left vertical axis is labeled Weight (%), with values ranging from 0 (bottom) to 120 (top) at intervals of 20 (0, 20, 40, 60, 80, 100, 120). The right vertical axis is labeled Deriv. Weight (%/K), with values ranging from -0.3 (bottom) to 1.0 (top) at intervals of 0.2 (-0.2, 0.0, 0.2, 0.4, 0.6, 0.8, 1.0). There are two curves in the figure. The first curve starts from the far left at 273 K and extends to the far right at 1273 K. It exhibits four plateau regions corresponding to A (280K~450K, marked at 443K, 100%), B (450 K~500K, marked at 473K, 81.6%), C (580K~620K, marked around 600K, 55.3%), and D (1200K~1300K, marked around 1220K, 19.9%). Sharp downward transitions occur after points A and B, while the curve between C and D slopes gently downward. The second curve starts from the far left at 273 K (corresponding to left values between 20%-40% and right values between -0.2%/K and 0.0%/K) and extends to the far right at 1273 K (corresponding to left values between 20%-40% and right values between -0.2%/K and 0.0%/K). It exhibits three peaks: the first peak is at 443 K (corresponding to left values between 100%-120% and right values between 0.8%/K and 1.0%/K), the second peak is at 559 K (corresponding to left values between 40%-60% and right values between 0.2%/K and 0.4%/K), and the third peak is at 935 K (corresponding to left values between 20%-40% and right values between -0.2%/K and 0.0%/K). The first peak is very sharp, the height of the second peak is less than half that of the first peak, and the third peak is very gentle with minor fluctuations.](/media/uploads/3327b8c6-5414-4aec-9a13-f875a366292b.png)</MultiModal>

The following options are correct:
将$\mathrm { C u C l } _ { 2 } { \cdot } 2 \mathrm { H } _ { 2 } \mathrm { O } \left( 1 \ \mathrm { m m o l } , 2 0 \ \mathrm { m L } \right.\mathrm{CH_3COCH_3)}$ 和2-(2-羟基苯基)苯并噻唑$\mathrm {(1} \ \mathrm{mmol,20}\ \mathrm{mL\ DMF)}$在室温下搅拌$\mathrm{1\ h} $后过滤，缓慢蒸发滤液。三周后，在母液中得到了一些深红色菱形单晶，产品分离后用去离子水和$\mathrm {DMF}$ 洗涤，在含有 $\mathrm { { P _ { 4 } O _ { 1 0 } } }$ 的真空干燥器中干燥后得到产物$\mathbf A$，元素分析表明$\mathbf A$中$\mathrm{C : 4 8 . 2 4 \%}$ ， $\mathrm{ N: 7 . 0 3 \%}$，并且其中铜离子为五配位，分子中存在对称中心。

化合物$\mathbf A$的热分解曲线如下图所示。

<MultiModal>![该图为化合物A的热分解图，横轴单位为Temperature (K)，刻度从273 K起，以200 K为间隔依次标出473、673、873、1073、1273 K，并延伸至右端；左边纵轴单位为Weight（%），左侧标注的数值从0（底部）到120（顶部），刻度以20为间隔，依次为0、20、40、60、80、100、120；右边纵轴单位为Deriv. Weight（%/K），右侧标注的数值范围从-0.3（底部）到1.0（顶部），刻度以0.2为间隔，依次为-0.2、0.0、0.2、0.4、0.6、0.8、1.0。图中有两条曲线，第一条曲线从最左边273 K开始一直到最右边1273 K，曲线中出现四个平台区域，分别对应 A（280K~450K，在443K有标记， 100%）、B（450 K~500K，在473K有标记，81.6%）、C（580K~620K左右，在600K左右有标记， 55.3%）、D（1200K~1300K左右，在1220K左右有标记， 19.9%），在A点和B点后一段距离会出现陡然向下的转折，C点到D点之间曲线斜向右下，较为平缓。第二条曲线从最左边273 K（对应左边数值20%-40%之间，右边数值-0.2%/K-0.0%/K之间）开始一直到最右边1273 K（对应左边数值20%-40%之间，右边数值-0.2%/K-0.0%/K之间），曲线中出现三个峰，第一个峰位于443 K处（对应左边数值100%-120%之间，右边数值0.8%/K-1.0%/K之间），第二个峰位于559 K处（对应左边数值40%-60%之间，右边数值0.2%/K-0.4%/K之间），第三个峰位于935 K处（对应左边数值20%-40%之间，右边数值-0.2%/K-0.0%/K之间），第一个峰非常尖锐，第二个峰的峰高小于第一个峰峰高的一半，第三个峰非常平缓，起伏较小。](/media/uploads/3327b8c6-5414-4aec-9a13-f875a366292b.png)</MultiModal>

以下选项正确的是:
In compound $\mathbf A$, only 2-(2-hydroxyphenyl)benzothiazole is coordinated.
The molecular point group of compound $\mathbf A$ is $ {C_{2v}}$
The chemical formula of $\mathbf A$ is $\mathrm{C_{16}H_{15}ClCuN_2O_2S}$.
From the thermal decomposition diagram, it can be concluded that during the transformation of compound $\mathbf A$ to compound $\mathbf B$ upon heating, one DMF molecule is lost (the molecular formula of compound $\mathbf A$ minus one DMF molecule).
From the thermolysis diagram, it can be concluded that the temperature at which compound $\mathbf A$ completely transforms into compound $\mathbf B$ upon heating does not reach the boiling point of the lost solvent molecules.
The compound $\mathbf D$ is a typical ionic crystal, which must belong to the tetragonal crystal system.
The compound $\mathbf D$ may be a black semiconductor, soluble in dilute hydrochloric acid and dilute sulfuric acid.
None of the above options are correct
化合物$\mathbf A$中只有2-(2-羟基苯基)苯并噻唑进行配位
化合物$\mathbf A$的分子点群为$ {C_{2v}}$
$\mathbf A$的化学式为$\mathrm{C_{16}H_{15}ClCuN_2O_2S}$
从热分解图中可以得出，化合物$\mathbf A$加热转为化合物$\mathbf B$的过程中失去了一个DMF分子（化合物$\mathbf A$的分子式减去1个DMF分子）
从热分解图中可以得出，化合物$\mathbf A$加热完全转变为化合物$\mathbf B$的温度没有达到所失去的溶剂分子的沸点
化合物$\mathbf D$是一种典型的离子晶体，一定为四方晶系
化合物$\mathbf D$可能是一种黑色半导体，可溶于稀盐酸、稀硫酸
以上选项均不正确
The structure of 2-(2-hydroxyphenyl)benzothiazole is OC1=CC=CC=C1C2=NC3=CC=CC=C3S2, where $\mathrm O$ and $\mathrm N$ are expected to be the coordinating atoms.

<Checkpoint>[In 2-(2-hydroxyphenyl)benzothiazole, $\mathrm O$ and $\mathrm N$ should be the coordinating atoms](1)</Checkpoint>

Based on the mass fractions of $\mathrm C$ and $\mathrm N$, the ratio of $\mathrm C$ to $\mathrm N$ is 8:1. For a single 2-(2-hydroxyphenyl)benzothiazole ligand, the $\mathrm C$ to $\mathrm N$ ratio is 13:1. Therefore, DMF is required to balance the atoms.

<Checkpoint>[Solvent coordination is present](1)</Checkpoint>

The $\mathrm C$ to $\mathrm N$ ratio in DMF is 3:1, so the calculated ratio of 2-(2-hydroxyphenyl)benzothiazole to DMF is 1:1.

Since the problem states that copper in compound $\mathbf A$ is five-coordinated, two additional coordination bonds are needed. Based on the nitrogen mass fraction of 7.03%, the total relative molecular mass is deduced to be 398. Subtracting one 2-(2-hydroxyphenyl)benzothiazole ligand and one DMF leaves approximately 36. If two water molecules were present, the molecule would lack a symmetric center. Considering that the ligands are not water but chloride ions and that compound $\mathbf A$ is a dimer, the two copper atoms are connected by an oxygen bridge.

<Checkpoint>[Compound $\mathbf A$ is a dimer, with chloride ions coordinating](1)</Checkpoint>

The final chemical formula of compound $\mathbf A$ is $\mathrm{[C_{16}H_{15}ClCuN_2O_2S]_2}$.

<Checkpoint>[The chemical formula of compound A is $\mathrm{[C_{16}H_{15}ClCuN_2O_2S]_2}$](2)</Checkpoint>

The structure is [H]/C(N(C)C)=O\[Cu]12([N]3=C(C4=CC=CC=C4O1[Cu]5(Cl)(O2C6=CC=CC=C6C7=[N]5C8=CC=CC=C8S7)/O=C(N(C)C)\[H])SC9=CC=CC=C39)Cl.

<MultiModal>![Chem3D structure diagram of compound $\mathbf A$, where gray spheres represent carbon atoms, white spheres represent hydrogen atoms, blue spheres represent nitrogen atoms, yellow spheres represent sulfur atoms, red spheres represent oxygen atoms, purple spheres represent copper atoms, and pink spheres represent LPs appearing after MM2 calculations](/media/uploads/4d6cbbd6-38ad-4647-84da-5d4fd55bc9ef.png)</MultiModal>

This compound has a symmetric center. The Chem3D diagram reveals the molecular structure, and the possibility of a $C_2$ axis cannot be ruled out. However, there is definitely no mirror plane containing the rotation axis, so the point group of the molecule cannot be $C_{2v}$.

<Checkpoint>[Compound $\mathbf A$ has a symmetric center, and the possibility of a $C_2$ axis cannot be ruled out, but there is definitely no mirror plane containing the rotation axis](1)</Checkpoint>

Options A, B, and C are incorrect.

From the thermal decomposition diagram, one curve is the thermogravimetric (TG) curve, and the other is the derivative thermogravimetric (DTG) curve, i.e., the derivative of the TG curve. The mass of compound $\mathbf B$ is 81.6% of that of compound $\mathbf A$, corresponding to a mass loss of 146, which matches the mass of two DMF molecules. Compound **A** loses two DMF molecules to form compound **B**.

<Checkpoint>[Compound **A** loses two DMF molecules to form compound **B**](1)</Checkpoint>

The boiling point of DMF is 153°C (426 K), while the TG curve shows compound $\mathbf B$ appears at 473 K, which is higher than the boiling point of DMF. Therefore, option D is incorrect.

Compound $\mathbf D$ accounts for 19.9% of compound $\mathbf A$, corresponding to a mass of 158. Considering the temperature is around 1200 K (927°C), the remaining compound $\mathbf D$ is likely an inorganic copper compound, possibly $\mathrm {CuO}$ (since the dimer contains two $\mathrm {Cu}$ atoms, it should be two $\mathrm {CuO}$ molecules) or $\mathrm{Cu_2S}$.

<Checkpoint>[Compound D may be copper oxide or copper(I) sulfide](1)</Checkpoint>

Both compounds are black solids. $\mathrm {CuO}$ is a semiconductor, soluble in dilute hydrochloric and sulfuric acids, and is an ionic crystal belonging to the monoclinic system. $\mathrm{Cu_2S}$ has good conductivity but is only soluble in hot concentrated sulfuric acid. It is an ionic crystal with two polymorphs: ${α}$ and $ β$, where $α\mathrm{-Cu_2S}$ crystallizes in the orthorhombic system and $β\mathrm{-Cu_2S}$ in the hexagonal system. Therefore, option F is incorrect, and option G is correct.
2-(2-羟基苯基)苯并噻唑的结构为OC1=CC=CC=C1C2=NC3=CC=CC=C3S2，其中$\mathrm O$和$\mathrm N$应该为配位原子，

<Checkpoint>[2-(2-羟基苯基)苯并噻唑中$\mathrm O$和$\mathrm N$应该为配位原子](1)</Checkpoint>

根据$\mathrm C$和$\mathrm N$质量分数得到$\mathrm C$和$\mathrm N$个数比为8：1，单个2-(2-羟基苯基)苯并噻唑配体的$\mathrm C$和$\mathrm N$个数比为13：1，所以需要DMF配平原子，

<Checkpoint>[存在溶剂配位](1)</Checkpoint>

DMF的$\mathrm C$和$\mathrm N$个数比为3:1，因此计算得到2-(2-羟基苯基)苯并噻唑：DMF的比例是1：1。

<Checkpoint>[2-(2-羟基苯基)苯并噻唑：DMF的比例是1：1。](1)</Checkpoint>

因为题目中提到化合物$\mathbf A$中铜为五配位，因此还需要两根配位键，根据N的质量分数7.03%，反推出总的相对分子质量为398，减去1个2-(2-羟基苯基)苯并噻唑配体和1个DMF后剩下36左右，如果是两个水分子，分子中不会出现对称中心，考虑配体不是水而是氯离子，并且化合物$\mathbf A$为二聚体，两个铜中间用氧桥进行连接，

<Checkpoint>[化合物$\mathbf A$为二聚体，氯离子进行配位](1)</Checkpoint>


最终得出化合物$\mathbf A$的化学式为$\mathrm{[C_{16}H_{15}ClCuN_2O_2S]_2}$

<Checkpoint>[化合物A的化学式为$\mathrm{[C_{16}H_{15}ClCuN_2O_2S]_2}$](2)</Checkpoint>

结构为[H]/C(N(C)C)=O\[Cu]12([N]3=C(C4=CC=CC=C4O1[Cu]5(Cl)(O2C6=CC=CC=C6C7=[N]5C8=CC=CC=C8S7)/O=C(N(C)C)\[H])SC9=CC=CC=C39)Cl

<Checkpoint>[$\mathbf A$的结构为[H]/C(N(C)C)=O\[Cu]12([N]3=C(C4=CC=CC=C4O1[Cu]5(Cl)(O2C6=CC=CC=C6C7=[N]5C8=CC=CC=C8S7)/O=C(N(C)C)\[H])SC9=CC=CC=C39)Cl](2)</Checkpoint>

<MultiModal>![化合物$\mathbf A$的Chem3D结构图，其中灰色的球为碳原子，白色的球为氢原子，蓝色的球为氮原子，黄色的球为硫原子，红色的球为氧原子，紫色的球为铜原子，粉色的球为MM2计算后出现的LP](/media/uploads/4d6cbbd6-38ad-4647-84da-5d4fd55bc9ef.png)</MultiModal>

该化合物存在对称中心，Chem3D图表现出分子的结构，不排除分子中存在$C_2$轴的可能，但是一定没有包含旋转轴的镜面，因此分子所属点群不可能为$C_{2v}$

<Checkpoint>[化合物$\mathbf A$存在对称中心，不排除分子中存在$C_2$轴的可能，但是一定没有包含旋转轴的镜面](1)</Checkpoint>

A、B、C三个选项错误。

从热分解图看，一条曲线为热重曲线，另一条为热重微分曲线，即热重曲线求导。化合物$\mathbf B$的质量为化合物$\mathbf A$的81.6%，计算得到损失的质量为146，正好为两个DMF分子的质量，化合物**A**失去两个DMF分子得到化合物**B**。

<Checkpoint>[化合物**A**失去两个DMF分子得到化合物**B**](1)</Checkpoint>

DMF的沸点为153摄氏度，即426K，而热重曲线中化合物$\mathbf B$对应的是473K，因此高于DMF沸点，选项D错误，E正确。

化合物$\mathbf D$为化合物$\mathbf A$的19.9%，计算得到$\mathbf D$的质量为158，考虑到温度为1200K左右，即927摄氏度，因此剩下的化合物$\mathbf D$应该为铜的无机物，可能为$\mathrm {CuO}$(二聚物有两个$\mathrm {Cu}$，因此应该为两个$\mathrm {CuO}$)或者$\mathrm{Cu_2S}$。

<Checkpoint>[化合物D可能为氧化铜或者硫化亚铜](1)</Checkpoint>


两个化合物都为黑色固体，其中$\mathrm {CuO}$为半导体，可溶于稀盐酸和稀硫酸，是一种离子晶体且属于单斜晶系；而$\mathrm{Cu_2S}$导电性好，但只能溶于热的浓硫酸，是一种离子晶体，硫化亚铜有${α}$和$ β$两种晶型，其中$α\mathrm{-Cu_2S}$ 为正交晶系结晶，$β\mathrm{-Cu_2S}$为六方晶系结晶。因此F错误，G正确。

<Checkpoint>[$\mathrm {CuO}$为半导体，可溶于稀盐酸和稀硫酸](1)</Checkpoint>

<Checkpoint>[$\mathrm {CuO}$是一种离子晶体且属于单斜晶系](1)</Checkpoint>

<Checkpoint>[$\mathrm{Cu_2S}$是一种离子晶体，有正交/六方两种晶型](1)</Checkpoint>