s-net: sqc2841



			    	
		

		

			
				
				
				
				
			
			
				
					Systre crystallographic geometry file (.cgd) 
			
		

	




	

	
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			topcryst
		

	

		



 

Topological data




	
Vertices per primitive translational unit 8 

	
Edges per primitive translational unit 18 

	
Transitivity (vertex,edge)(2,6)

	
Vertex degrees {5,4} 

	
Vertex coordination sequence  [(5, 14, 29, 50, 77, 110, 149, 194, 245, 302), (4, 11, 26, 49, 77, 110, 149, 194, 245, 302)] 

	
Wells’ vertex symbol [4^4.6^6, 4^3.6^3] 

	
Systre key (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 5, 0, 0, 0, 2, 5, 0, 1, 0, 2, 6, 0, 0, 0, 3, 6, 0, 0, 1, 3, 6, 1, 0, 1, 3, 7, 0, 0, 0, 4, 5, 0, 1, 0, 4, 5, 1, 1, 0, 4, 7, 0, 0, 0, 5, 8, 0, 0, 0, 6, 8, 0, 0, 0, 6, 8, 0, 1, 0, 7, 8, 0, 1, 1, 7, 8, 1, 1, 1) 




 

Geometric data



Systre equilibrium placement (barycentric embedding) maximising unit cell volume




	
 Spacegroup: Pmmm 


	
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 1.77558 
			 3.07352  
			 2.29156 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

	


	
 Vertex positions:
		

			

				 X-pos 
				 Y-pos 
				 Z-pos 
			


				
 
						 0  
						 0.16667  
						 0.3  
				
	  
				
 
						 0.5  
						 0.33333  
						 0.4  
				
	  
		

	

	
Edge end points: 
		

		
		
	






Systre coordinates favouring equal edge-lengths




	
 Spacegroup: Pmmm 



		
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 1.73108 
			 3.00168  
			 2.00005 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

		


		
Vertex positions:
			

				

					 X-pos 
					 Y-pos 
					 Z-pos 
				


					
 
							 0  
							  0.16658  
							  0.25  
					
	  
					
 
							 0.5  
							  0.33343  
							  0.25002  
					
	  
			

		


		
Edge end points: 
			

			
			
		



	

	 


 

Hyperbolic sources





h-nets with faithful topology




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h-nets with edge collapse